Jinja2 extension for dates and times - Python 3.x

 This extension for the template engine Jinja2 adds a "now" tag
 that retrieves the current datetime in a given time zone from your
 templates. Time zone specifiers supported are "utc", "local",
 "[+-]HH[:][MM]" and formats supported by dateutil.tz.gettz (including
 IANA zones and GNU tz strings). A format string can be provided to
 control the output.