REPUBLIC OF PERILO NATIONAL STANDARDS

The following standards have been published by the National Standards Organization and govern activities within the borders of the Republic of Perilo:

STANDARD 1 - YEAR REFERENCES

1.01. Purpose:  This standard establishes a standard and uniform method of specification of dates when the date is expressed as a year only.

1.02. Year References: When a year must be identified in reference to the commonly used European and American calendar (the Gregorian calendar), the letters CE (Common Era) will be used in place of AD (for example, 2006 CE in place of AD 2006) and BCE (Before Common Era) in place of BC (for example 220 BCE in place of 220 BC). 

1.03. Rationale for Adoption: The use of CE and BCE meets national objectives by (1) rationalizing the location of era identifiers attached to dates (the use of AD and BC requires BC after the date and AD before the date), (2) removing religious connotations offensive to major population groups from date conventions, and (3) achieving a higher degree of historical accuracy in the dating convention.

1.04. Effective: 2006-11-01. 

STANDARD 2 - TIMES

2.01. Purpose:  This standard establishes a standard and uniform method of the specification of time as hours and minutes and specifies the national time zone.

2.02. Standard Time Zone: The standard time zone for Perilo is Perilo Standard Time. 

2.03. Time: Perilo Standard Time is expressed in 24 hour clock time starting at 0000 (midnight).  Time prior to noon is the clock hour and minutes expressed as a group of 4 digits, with the first digit a 0 when the hour is a single digit (for example 5:22 am is 0522); time after noon is 12 hour clock time plus 1200 (for example, 9:00 pm is 2100).   When written, no punctuation is used between digits in the text (for example, 11:35 am is written as 1135 and 4:16 pm is written as 1616). 

2.04. Relationship to Universal Coordinated Time (UTC):  Perilo Standard Time is UTC+3 hours.

2.05. Rationale for Adoption: The use of 24 hour clock time brings Perilan practice in line with common practice in other nations, with the use of time in communications and transportation, and with the standards adopted for dates, simplifies conversion from Universal Coordinated Time, and simplifies computer and database applications.

2.06. Effective: 2007-01-01.

STANDARD 3 - DATES

3.01. Purpose: This standard establishes a standard and uniform method of writing dates composed of year and month or year, month, and day.

3.02. Date Formats:

3.02.a.  All dates are written as numerals, with the year as 4 digits, followed by the month as 2 digits, followed by the day as 2 digits, separated by hyphens (for example, November 3, 2007 is written as 2007-11-03).

3.02.b.  Portions of a complete date can be used as shown in the following table:

Date Elements Written As Examples
Year only 4 digits (expressed as yyyy) 2007
Year and month 4 digits - 2 digits (yyyy-mm) March 2007 is 2007-03
Year, month, and day 4 digits - 2 digits - 2 digits (yyyy-mm-dd) March 12, 2007 is 2007-03-12
Year and week 4 digits - letter W - 2 digits (yyyy-Www) the second week of January 2007 is 2007-W02
Year and day 4 digits - 3 digits (yyyy-ddd) the 15th of February 2007 is 2007-046
Year, week, and day of the week 4 digits - letter W - 2 digits - 1 digit (yyyy-Www-d) - days are counted based on the week starting on Sunday the 15th of February 2008 is 2008-W06-6
Year, month, day, and time 4 digits - 2 digits - 2 digits - letter T 4 digits (yyyy-mm-dd-Ttttt) 8:15 pm on September 17, 2005 is 2005-09-17T2015

3.05. Rationale for Adoption:  This standard brings Perilan practice into general compliance with the provisions of international standard ISO 8601.

3.06. Effective: 2007-01-11.

STANDARD 4 - DATE-TIME GROUPS

4.01. Purpose:  This standard establishes a standard and uniform method of composing date-time groups for use in communcations and operations.

4.02. Date-Time Groups: Date-time groups for use in communications are written as the standard date group (4 digit year-2 digit month-2 digit day) followed by the capital letter "T" and the standard time group of 4 digits (for example, a message sent at 3:32 pm on 19 August 2006 would have a date-time group of 2006-08-19T1532).  Date-time groups are assumed to be Perilan Standard Time unless the letter "Z" is appended to the group indicating Universal Coordinated Time (for example, 2006-08-19T1532Z).

4.03. Rationale for Adoption: Date-time groups are commonly used within communications and in military operations to specify both date and time.  This standard brings these date-time groups in line with Standard 3 and with ISO .

4.04. Effective: 2007-01-01.