Bitbucket supports absolute dates and provides an accurate date of the commits.

It works both for Bitbucket.org and for *.atlassian.com. When you install it on Bitbucket.org, it's also working on all *.com domains.

To use it, you need to enter "domain regexp" in the "Extensions" tab.

Bitbucket supports 4 time formats:

day/month/year HH:mm (24h)

day/month/year hh:mm (12h)

day/month/year MMMDD (MMM-DD-YYYY)

day/month/year MM/dd/YYYY

There are also date formats in which you can write the date in the past or future.

There is also the possibility of the dates being localized by the application.