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Timelib 2017.05
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@derickr derickr released this 10 Nov 11:59
· 510 commits to master since this release
2017.05
1ac4ddf

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.
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