gustavo niemeyer yuoyahjniemeyernet version 14 dateutil httplabixorgpythondateutil changes since 13 fixed another parser precision problem conversion decimal seconds microseconds reported erik brown issues gone real since using floating point arithmetic anymore fixed case tzrangeutcoffset tzrangedst might fail due date used datetime expected reported fixed lennart regebro prevent tzstr introducing daylight timings strings didnt specify reported lennart regebro calls like gettzgmt3 gettzutc2 return expected values instead tz variable behavior fixed dst signal handling zoneinfo files reported nicholas f fabry johnmark gurney dateutil module provides powerful extensions standard datetime module available python 23 features computing relative deltas next month next year next monday last week month lot computing relative deltas two given date andor datetime objects computing dates based flexible recurrence rules every month every week thursday friday every friday 13th lot using superset icalendar rfc specification parsing rfc strings supported well generic parsing dates almost string format timezone tzinfo implementations tzfile5 format files etclocaltime usrsharezoneinfo etc tz environment string known formats icalendar format files given ranges help relative deltas local machine timezone fixed offset timezone utc timezone windows registrybased timezones internal uptodate world timezone information based olsons database computing easter sunday dates given year using western orthodox julian algorithms 400 test cases gustavo niemeyer httpniemeyernet httpmailpythonorgmailmanlistinfopythonannouncelist support python software foundation httpwwwpythonorgpsfdonationshtml tue 05 aug 2008 125743 0300 dateutil 14