Documentation: crsmithdev.com/arrow.

Arrow is a Python library that provides a sensible, intelligent way of creating, manipulating, formatting and converting dates and times. Arrow is simple, lightweight and heavily inspired by moment.js and requests.

Python's standard library and some other low-level modules offer complete functionality but don't work very well from a usability perspective:

• Too many modules: datetime, time, calendar, dateutil, pytz
• Time zones and timestamp conversions are verbose and error-prone
• Time zones are explicit, naivete is the norm
• Gaps in functionality: ISO-8601 parsing, timespans, humanization

• Implements the datetime interface
• Supports Python 2.6, 2.7 and 3.3
• TZ-aware & UTC by default
• Concise, intelligent interface for creation
• Easily replace and shift attributes
• Rich parsing & formatting options
• Timezone conversion
• Simple timestamp handling
• Time spans, ranges, floors and ceilings
• Humanization, with support for a growing number of locales
• Extensible factory architecture supporting custom Arrow-derived types

$ pip install arrow

>>> import arrow
>>> utc = arrow.utcnow()
>>> utc
<Arrow [2013-05-11T21:23:58.970460+00:00]>

>>> utc = utc.replace(hours=-1)
>>> utc
<Arrow [2013-05-11T20:23:58.970460+00:00]>

>>> local = utc.to('US/Pacific')
>>> local
<Arrow [2013-05-11T13:23:58.970460-07:00]>

>>> local.timestamp
1368303838

>>> local.format('YYYY-MM-DD HH:mm:ss ZZ')
'2013-05-11 13:23:58 -07:00'

>>> local.humanize()
'an hour ago'

>>> local.humanize(locale='ko_kr')
'1시간 전'

Documentation is available at crsmithdev.com/arrow.