Representation of Date and Time Data Standard
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Work Hours Calendar Work Hours Calendar
Work Hours Calendar Work Hours Calendar EMPLOYEE: DATES (Dates entered in this calendar, e.g., April–July 2016) EMPLOYER: START OF WORKWEEK: PAY: (Sunday / Monday / Tuesday / etc.) (Hourly / Tips / Salary / Piece Rate) Minimum Wage Generally, you must be paid at least the federal minimum wage for all the time that you work, whether you are paid by the hour, the day, or at a piece rate. Overtime & Regular Rate If you are not an exempt employee, you must receive time and one-half your regular rate of pay after 40 hours of work in a seven-day workweek. Regular rate includes most compensation, including non-discretionary bonuses and shift differentials. Misclassification Some employers misclassify workers who are employees under the law as something other than employees, sometimes calling them “independent contractors.” When this happens, the workers do not receive certain workplace rights and benefits, such as the minimum wage and overtime pay, to which they are legally entitled. Recordkeeping Generally, you should know that your employer must keep records of all wages paid to you and of all hours you worked, no matter where the work is done. Similarly, we recommend that you keep your own records of all the hours you work and of your pay. We recommend that you keep all your pay 1 stubs, information your employer gives you or tells you about your pay rate, how many hours you worked, including overtime, and other information on your employer’s pay practices. This work hours calendar should help you keep as much information as possible. Em ployers must pay employees for all the time worked in a workday. -
So Many Date Formats: Which Should You Use? Kamlesh Patel, Jigar Patel, Dilip Patel, Vaishali Patel Rang Technologies Inc, Piscataway, NJ
Paper – 2463-2017 So Many Date Formats: Which Should You Use? Kamlesh Patel, Jigar Patel, Dilip Patel, Vaishali Patel Rang Technologies Inc, Piscataway, NJ ABSTRACT Nearly all data is associated with some Date information. In many industries, a SAS® programmer comes across various Date formats in data that can be of numeric or character type. An industry like pharmaceuticals requires that dates be shown in ISO 8601 formats due to industry standards. Many SAS programmers commonly use a limited number of Date formats (like YYMMDD10. or DATE9.) with workarounds using scans or substring SAS functions to process date-related data. Another challenge for a programmer can be the source data, which can include either Date-Time or only Date information. How should a programmer convert these dates to the target format? There are many existing Date formats (like E8601 series, B8601 series, and so on) and informants available to convert the source Date to the required Date efficiently. In addition, there are some useful functions that we can explore for deriving timing-related variables. For these methods to be effective, one can use simple tricks to remember those formats. This poster is targeted to those who have a basic understanding of SAS dates. KEYWORDS SAS, date, time, Date-Time, format, informat, ISO 8601, tips, Basic, Extended, Notation APPLICATIONS: SAS v9.2 INTRODUCTION Date and time concept in SAS is very interesting and can be handled very efficiently if SAS programmers know beyond basics of different SAS Date formats and informats along with many different Date functions. There are various formats available to use as per need in SAS. -
What Time Is It?
The Astronomical League A Federation of Astronomical Societies Astro Note E3 – What Time Is It? Introduction – There are many methods used to keep time, each having its own special use and advantage. Until recently, when atomic clocks became available, time was reckoned by the Earth's motions: one rotation on its axis was a "day" and one revolution about the Sun was a "year." An hour was one twenty-fourth of a day, and so on. It was convenient to use the position of the Sun in the sky to measure the various intervals. Apparent Time This is the time kept by a sundial. It is a direct measure of the Sun's position in the sky relative to the position of the observer. Since it is dependent on the observer's location, it is also a local time. Being measured according to the true solar position, it is subject to all the irregularities of the Earth's motion. The reference time is 12:00 noon when the true Sun is on the observer's meridian. Mean Time Many of the irregularities in the Earth's motion are due to its elliptical orbit. In order to add some consistency to the measure of time, we use the concept of mean time. Mean time uses the position of a fictitious "mean Sun" which moves smoothly and uniformly across the sky and is insensitive to the irregularities of the Earth’s motion. A mean solar day is 24 hours long. The "Equation of Time," tabulated in almanacs and represented on maps by the analemma, provides the correction between mean and apparent time to allow for the eccentricity of the Earth's orbit. -
The Mathematics of the Chinese, Indian, Islamic and Gregorian Calendars
Heavenly Mathematics: The Mathematics of the Chinese, Indian, Islamic and Gregorian Calendars Helmer Aslaksen Department of Mathematics National University of Singapore [email protected] www.math.nus.edu.sg/aslaksen/ www.chinesecalendar.net 1 Public Holidays There are 11 public holidays in Singapore. Three of them are secular. 1. New Year’s Day 2. Labour Day 3. National Day The remaining eight cultural, racial or reli- gious holidays consist of two Chinese, two Muslim, two Indian and two Christian. 2 Cultural, Racial or Religious Holidays 1. Chinese New Year and day after 2. Good Friday 3. Vesak Day 4. Deepavali 5. Christmas Day 6. Hari Raya Puasa 7. Hari Raya Haji Listed in order, except for the Muslim hol- idays, which can occur anytime during the year. Christmas Day falls on a fixed date, but all the others move. 3 A Quick Course in Astronomy The Earth revolves counterclockwise around the Sun in an elliptical orbit. The Earth ro- tates counterclockwise around an axis that is tilted 23.5 degrees. March equinox June December solstice solstice September equinox E E N S N S W W June equi Dec June equi Dec sol sol sol sol Beijing Singapore In the northern hemisphere, the day will be longest at the June solstice and shortest at the December solstice. At the two equinoxes day and night will be equally long. The equi- noxes and solstices are called the seasonal markers. 4 The Year The tropical year (or solar year) is the time from one March equinox to the next. The mean value is 365.2422 days. -
Islamic Calendar from Wikipedia, the Free Encyclopedia
Islamic calendar From Wikipedia, the free encyclopedia -at اﻟﺘﻘﻮﻳﻢ اﻟﻬﺠﺮي :The Islamic, Muslim, or Hijri calendar (Arabic taqwīm al-hijrī) is a lunar calendar consisting of 12 months in a year of 354 or 355 days. It is used (often alongside the Gregorian calendar) to date events in many Muslim countries. It is also used by Muslims to determine the proper days of Islamic holidays and rituals, such as the annual period of fasting and the proper time for the pilgrimage to Mecca. The Islamic calendar employs the Hijri era whose epoch was Islamic Calendar stamp issued at King retrospectively established as the Islamic New Year of AD 622. During Khaled airport (10 Rajab 1428 / 24 July that year, Muhammad and his followers migrated from Mecca to 2007) Yathrib (now Medina) and established the first Muslim community (ummah), an event commemorated as the Hijra. In the West, dates in this era are usually denoted AH (Latin: Anno Hegirae, "in the year of the Hijra") in parallel with the Christian (AD) and Jewish eras (AM). In Muslim countries, it is also sometimes denoted as H[1] from its Arabic form ( [In English, years prior to the Hijra are reckoned as BH ("Before the Hijra").[2 .(ﻫـ abbreviated , َﺳﻨﺔ ﻫِ ْﺠﺮﻳّﺔ The current Islamic year is 1438 AH. In the Gregorian calendar, 1438 AH runs from approximately 3 October 2016 to 21 September 2017.[3] Contents 1 Months 1.1 Length of months 2 Days of the week 3 History 3.1 Pre-Islamic calendar 3.2 Prohibiting Nasī’ 4 Year numbering 5 Astronomical considerations 6 Theological considerations 7 Astronomical -
ASN.1. Communication Between Heterogeneous Systems – Errata
ASN.1. Communication between heterogeneous systems – Errata These errata concern the June 5, 2000 electronic version of the book "ASN.1. Communication between heterogeneous systems", by Olivier Dubuisson (© 2000). (freely available at http://www.oss.com/asn1/resources/books‐whitepapers‐pubs/asn1‐ books.html#dubuisson.) N.B.: The first page number refers to the PDF electronic copy and is the number printed on each page, not the number at the bottom of the Acrobat Reader window. The page number in parentheses refers to the paper copy published by Morgan Kaufmann. Page 9 (page 8 for the paper copy): ‐ last line, replace "(the number 0 low‐weighted byte" with "(the number 0 low‐weighted bit". Page 19 (page 19 for the paper copy): ‐ on the paper copy, second bullet, replace "the Physical Layer marks up..." with "the Data Link Layer marks up...". ‐ on the electronic copy, second bullet, replace "it is down to the Physical Layer to mark up..." with "it is down to the Data Link Layer to mark up...". Page 25 (page 25 for the paper copy): second paragraph, replace "that all the data exchange" with "that all the data exchanged". Page 32 (page 32 for the paper copy): last paragraph, replace "The order number has at least 12 digits" with "The order number has always 12 digits". Page 34 (page 34 for the paper copy): first paragraph, replace "it will be computed again since..." with "it will be computed again because...". Page 37 for the electronic copy only: in the definition of Quantity, replace "unites" with "units". Page 104 (page 104 for the paper copy): ‐ in rule <34>, delete ", digits"; ‐ at the end of section 8.3.2, add the following paragraph: Symbols such as "{", "[", "[[", etc, are also lexical tokens of the ASN.1 notation. -
Geologic Timeline
SCIENCE IN THE PARK: GEOLOGY GEOLOGIC TIME SCALE ANALOGY PURPOSE: To show students the order of events and time periods in geologic time and the order of events and ages of the physiographic provinces in Virginia. BACKGROUND: Exact dates for events change as scientists explore geologic time. Dates vary from resource to resource and may not be the same as the dates that appear in your text book. Analogies for geologic time: a 24 hour clock or a yearly calendar. Have students or groups of students come up with their own original analogy. Before you assign this activity, you may want to try it, depending on the age of the student, level of the class, or time constraints, you may want to leave out the events that have a date of less than 1 million years. ! Review conversions in the metric system before you begin this activity ! References L.S. Fichter, 1991 (1997) http://csmres.jmu.edu/geollab/vageol/vahist/images/Vahistry.PDF http://pubs.usgs.gov/gip/geotime/age.html Wicander, Reed. Historical Geology. Fourth Edition. Toronto, Ontario: Brooks/Cole, 2004. Print. VIRGINIA STANDARDS OF LEARNING ES.10 The student will investigate and understand that many aspects of the history and evolution of the Earth can be inferred by studying rocks and fossils. Key concepts include: relative and absolute dating; rocks and fossils from many different geologic periods and epochs are found in Virginia. Developed by C.P. Anderson Page 1 SCIENCE IN THE PARK: GEOLOGY Building a Geologic Time Scale Time: Materials Meter stick, 5 cm adding machine tape, pencil, colored pencils Procedure 1. -
Understanding JSON Schema Release 2020-12
Understanding JSON Schema Release 2020-12 Michael Droettboom, et al Space Telescope Science Institute Sep 14, 2021 Contents 1 Conventions used in this book3 1.1 Language-specific notes.........................................3 1.2 Draft-specific notes............................................4 1.3 Examples.................................................4 2 What is a schema? 7 3 The basics 11 3.1 Hello, World!............................................... 11 3.2 The type keyword............................................ 12 3.3 Declaring a JSON Schema........................................ 13 3.4 Declaring a unique identifier....................................... 13 4 JSON Schema Reference 15 4.1 Type-specific keywords......................................... 15 4.2 string................................................... 17 4.2.1 Length.............................................. 19 4.2.2 Regular Expressions...................................... 19 4.2.3 Format.............................................. 20 4.3 Regular Expressions........................................... 22 4.3.1 Example............................................. 23 4.4 Numeric types.............................................. 23 4.4.1 integer.............................................. 24 4.4.2 number............................................. 25 4.4.3 Multiples............................................ 26 4.4.4 Range.............................................. 26 4.5 object................................................... 29 4.5.1 Properties........................................... -
Array Databases: Concepts, Standards, Implementations
Baumann et al. J Big Data (2021) 8:28 https://doi.org/10.1186/s40537-020-00399-2 SURVEY PAPER Open Access Array databases: concepts, standards, implementations Peter Baumann , Dimitar Misev, Vlad Merticariu and Bang Pham Huu* *Correspondence: b. Abstract phamhuu@jacobs-university. Multi-dimensional arrays (also known as raster data or gridded data) play a key role in de Large-Scale Scientifc many, if not all science and engineering domains where they typically represent spatio- Information Systems temporal sensor, image, simulation output, or statistics “datacubes”. As classic database Research Group, Jacobs technology does not support arrays adequately, such data today are maintained University, Bremen, Germany mostly in silo solutions, with architectures that tend to erode and not keep up with the increasing requirements on performance and service quality. Array Database systems attempt to close this gap by providing declarative query support for fexible ad-hoc analytics on large n-D arrays, similar to what SQL ofers on set-oriented data, XQuery on hierarchical data, and SPARQL and CIPHER on graph data. Today, Petascale Array Database installations exist, employing massive parallelism and distributed processing. Hence, questions arise about technology and standards available, usability, and overall maturity. Several papers have compared models and formalisms, and benchmarks have been undertaken as well, typically comparing two systems against each other. While each of these represent valuable research to the best of our knowledge there is no comprehensive survey combining model, query language, architecture, and practical usability, and performance aspects. The size of this comparison diferentiates our study as well with 19 systems compared, four benchmarked to an extent and depth clearly exceeding previous papers in the feld; for example, subsetting tests were designed in a way that systems cannot be tuned to specifcally these queries. -
Guide for the Use of the International System of Units (SI)
Guide for the Use of the International System of Units (SI) m kg s cd SI mol K A NIST Special Publication 811 2008 Edition Ambler Thompson and Barry N. Taylor NIST Special Publication 811 2008 Edition Guide for the Use of the International System of Units (SI) Ambler Thompson Technology Services and Barry N. Taylor Physics Laboratory National Institute of Standards and Technology Gaithersburg, MD 20899 (Supersedes NIST Special Publication 811, 1995 Edition, April 1995) March 2008 U.S. Department of Commerce Carlos M. Gutierrez, Secretary National Institute of Standards and Technology James M. Turner, Acting Director National Institute of Standards and Technology Special Publication 811, 2008 Edition (Supersedes NIST Special Publication 811, April 1995 Edition) Natl. Inst. Stand. Technol. Spec. Publ. 811, 2008 Ed., 85 pages (March 2008; 2nd printing November 2008) CODEN: NSPUE3 Note on 2nd printing: This 2nd printing dated November 2008 of NIST SP811 corrects a number of minor typographical errors present in the 1st printing dated March 2008. Guide for the Use of the International System of Units (SI) Preface The International System of Units, universally abbreviated SI (from the French Le Système International d’Unités), is the modern metric system of measurement. Long the dominant measurement system used in science, the SI is becoming the dominant measurement system used in international commerce. The Omnibus Trade and Competitiveness Act of August 1988 [Public Law (PL) 100-418] changed the name of the National Bureau of Standards (NBS) to the National Institute of Standards and Technology (NIST) and gave to NIST the added task of helping U.S. -
Illustrating Time's Shadow Supplements
Illustrating Time's Shadow Supplements Supplemental Shadows This book addresses small indoor sundials of wood, glass, and PVC, as well as outside garden dials of glass, clay, tile, and common building materials. Less common dial features such as the inclined decliner and calendar or declination curves, are covered, as well as the astrolabe, other altitude dials and azimuth time keepers. This book uses empirical, geometric, trigonometric, CAD (computer aided design) both 2d and 3d, spreadsheet, procedural programming, tabular methods, and other techniques. Tables are provided. Simon Wheaton-Smith 1 ILLUSTRATING TIME’S SHADOW The Supplements Supplemental Shadows enhances both the book Illustrating Time’s Shadow as well as its associated Appendices by Simon Wheaton-Smith ISBN 978-0-9960026-1-5 Library of Congress Control Number: 2014904840 Simon Wheaton-Smith www.illustratingshadows.com (c) 2004-2018 Simon Wheaton-Smith All rights reserved. June 12, 2018 2 THE ILLUSTRATING SHADOWS COLLECTION Illustrating Shadows provides several books or booklets:- Simple Shadows Build a horizontal dial for your location. Appropriate theory. Cubic Shadows Introducing a cube dial for your location. Appropriate theory. Cutting Shadows Paper cutouts for you to make sundials with. Illustrating Times Shadow the big book Illustrating Times Shadow ~ Some 400 pages covering almost every aspect of dialing. Includes a short appendix. Appendices Illustrating Times Shadow ~ The Appendices ~ Some 180 pages of optional detailed appendix material. Supplement Supplemental Shadows ~ Material in the form of a series of articles, covers more on the kinds of time, declination confusion, other proofs for the vertical decliner, Saxon, scratch, and mass dials, Islamic prayer times (asr), dial furniture, and so on! Programming Shadows A book discussing many programming languages, their systems and how to get them, many being free, and techniques for graphical depictions. -
NIST Time and Frequency Services (NIST Special Publication 432)
Time & Freq Sp Publication A 2/13/02 5:24 PM Page 1 NIST Special Publication 432, 2002 Edition NIST Time and Frequency Services Michael A. Lombardi Time & Freq Sp Publication A 2/13/02 5:24 PM Page 2 Time & Freq Sp Publication A 4/22/03 1:32 PM Page 3 NIST Special Publication 432 (Minor text revisions made in April 2003) NIST Time and Frequency Services Michael A. Lombardi Time and Frequency Division Physics Laboratory (Supersedes NIST Special Publication 432, dated June 1991) January 2002 U.S. DEPARTMENT OF COMMERCE Donald L. Evans, Secretary TECHNOLOGY ADMINISTRATION Phillip J. Bond, Under Secretary for Technology NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY Arden L. Bement, Jr., Director Time & Freq Sp Publication A 2/13/02 5:24 PM Page 4 Certain commercial entities, equipment, or materials may be identified in this document in order to describe an experimental procedure or concept adequately. Such identification is not intended to imply recommendation or endorsement by the National Institute of Standards and Technology, nor is it intended to imply that the entities, materials, or equipment are necessarily the best available for the purpose. NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY SPECIAL PUBLICATION 432 (SUPERSEDES NIST SPECIAL PUBLICATION 432, DATED JUNE 1991) NATL. INST.STAND.TECHNOL. SPEC. PUBL. 432, 76 PAGES (JANUARY 2002) CODEN: NSPUE2 U.S. GOVERNMENT PRINTING OFFICE WASHINGTON: 2002 For sale by the Superintendent of Documents, U.S. Government Printing Office Website: bookstore.gpo.gov Phone: (202) 512-1800 Fax: (202)