New TzDatabase class

TzDatabase provides aggregate info on all time zones

v1.19.4: update to TZ database 2015e

v1.19.4: update to TZ database 2015e

upgrade TZ database to 2015d

1.19.3

Version 1.19.3: upgrade TZ database to 2015d

Upgrade TZ database to 2015c

1.19.2

Version 1.19.2: Upgrade TZ database to 2015c

Version 1.19.1: minor adjustment to tc.utc()

Version 1.19.1: minor adjustment to tc.utc()

Made Period clonable

1.19.0

Version 1.19.0: made Period clonable.

Add DateTime.startOfMonth(), Period.findPrev()

• Add DateTime#startOfMonth() which returns the date truncated to the first day of the month at 00:00:00
• Add DateTime#startOfYear() which returns the date truncated to the first day of the year at 00:00:00
• Add Period#findPrev() analogous to findNext()
• Allow count parameter <= 0 in Period#findNext() / Period#findPrev() i.e. findNext(dt, -1) === findPrev(dt, 1)

add DateTime#toExcel() and DateTime#toUtcExcel()

1.17.0

Version 1.17.0: add toExcel() and toUtcExcel()

Make robust w.r.t. fractional numbers

1.16.1 (2015-03-26)

• Make DateTime constructor robust with respect to fractional numbers (it rounds to nearest millisecond)
• Make DateTime#add() / addLocal() / sub() / subLocal() robust to fractional amounts (works for millis through weeks, throws for months/years)

Add DateTime#withZone() method

1.16.0

Add DateTime#withZone() method.