# References

The design of the library is currently being evolved using Wiki and email discussions. You can find more information at: Boost Wiki GDTL Start Page.

- Date References
- Time References
- Other C/C++ Libraries
- JAVA Date-Time Libraries
- Scripting Language Libraries
- Related Commercial and Fanciful Pages
- Resolution, Precision, and Accuracy

Date Calendar References

- ISO 8601 date time standard -- Summary by Markus Kuhn
- Calendrical Calculations book by Reingold & Dershowitz
- Calendar FAQ by Claus Tøndering
- Calendar zone
- XML schema for date time
- Will Linden's Calendar Links
- XMAS calendar melt

Time

- Martin Folwer on time patterns
  - Recurring Events for Calendars
  - Patterns for things that Change with time
- US National Institute of Standards and Technology Time Exhibits
- Network Time Protocol at NTP.org
- US Navy Systems of Time
- International Atomic Time
- Date-Time type PostgreSQL User Guide

Other C/C++ Libraries

- ctime C Standard library reference at cplusplus.com
- XTime C extension proposal
- Another C library extension proposal by David Tribble
- libTAI is a C based time library
- Time Zone Database C library for managing timezones/places
- International Components for Unicode by IBM (open source)
  - Calendar Class
  - Date Time Services
  - Time Zone Class
  - Date-Time Formatting
- Julian Library in C by Mark Showalter -- NASA

JAVA Date & Time Library Quick Reference

- Calendar class
- Gregorian calendar
- Date class
- sql.time class
- Date format symbols
- Date format
- Simple Date Format
- Simple Time Zone

Scripting Language Libraries

- A python date library MX Date Time
- Perl date-time
  - Date-Time packages at CPAN
  - Date::Calc at CPAN
  - Date::Convert calendar conversions at CPAN

Related Commercial and Fanciful Pages

- Eastern Standard Tribe -- Cory Doctorow science fiction novel with time themes.
- Leapsecond.com time page
- World Time Server / TZ database
- 10000 year clock at Long Now Foundation
- Timezones for PCs

Resolution, Precision, and Accuracy

- Definitions with pictures from Agilent Technologies
- Definitions from Southampton Institute