timelib 2018.01

• Updates embedded data to IANA tzdata 2018.9
• 64-bit transitions are now used in determining UTC offsets
• Support for user-defined format specifiers in timelib date parsing (Nick Zolnierz, MongoDB)
• Account for v representing milliseconds introduced by RFC3339_EXTENDED (Mariano Iglesias)
• Removed use of setlocale, which made the code not thread safe
• Fixed off by one error in do_range_limit_fraction()
• Fixed incorrect snprintf invocation with static buffer
• Fixed normalisation of fractions
• Fixed timelib_diff(), which did not swap direction when sses are the same, but fractions were not
• Fixed C4477 warnings in timelib_dump_tzinfo() when compiling with MSVC (Henrik Eden, MongoDB)

Timelib 2018.01alpha2

Updates the data package to 2018e, and includes a fix for issue #37: Incorrect snprintf invocation with static buffer

Timelib 2017.07

Updates the data package to 2018e, and includes a fix for issue #37: Incorrect snprintf invocation with static buffer

Timelib 2017.05

This release of timelib is the cumulation of the last half year, as part of a MongoDB Inc. project to get time zone support added to the Aggregation/Framework.

The following items are noteworthy improvements:

• Added support for reading tzdata files from the file system (/usr/share/zoneinfo)
• Performance improvements in rendering very early or late timestamps in year/month/day format
• Support for TZif3 files
• New functions:
  • timelib_isodate_from_date — to convert from year, month, day to ISO year, week and dayOfWeek
  • timelib_date_from_isodate — to convert from ISO year, week, and dayOfWeek to year, month and day
  • timelib_hms_to_decimal_hour — to convert from hour, minute, seconds to fractional hours
  • timelib_ts_to_julianday — Converts the Unix Epoch time stamp 'ts' to a Julian Day
• Better Endianness support, and added support for more exotic platforms (s390)
• Fractions are now stored as integers instead of floats (API change)
• Added error codes to parser errors and warnings
• Change calculations in timelib to use seconds East instead of minutes West (API change, MongoDB issue SERVER-30259)
• Added function documentation to the timelib.h header file
• Updated built-in Olson version of timezonemap.h and timezonedb.h to 2017.03.
• Issue #17: Formatting date/time from timestamps goes wrong sometimes
• Issue #19: Inefficient algorithm for calculating dates far in the past.

2017.02: Added functionality for reading system tzfiles

Make sure to include sys/time.h

2015.02: House keeping and memory management

This release addresses the following issues:

• some times before the initial transition where not calculated properly
• timezone file wasn't sorted properly, which meant that some zones could not be found
• a patch that allows external memory managers to be used

First public release

This is the first public release of timelib - the library powering PHP's Date/Time support.