Timestamps in Django admin site ignore timezone

[jcass77]

The runtime timestamps that are displayed for django-apscheduler in the Django admin site are always rendered using the same "%Y-%m-%d %H:%M:%S" time format.

This can be confusing as date times rendered elsewhere by standard Django uses the format specified in the DATE_TIME setting instead, which defaults to 'N j, Y, P'.

The current implementation also does not cater for displaying date times in the user's local or preferred format.

As an example, the UCT time 2018-11-19 06:10:00 should be displayed as Nov. 19, 2018, 8:10:00 a.m. if the user's local time is UCT+2, to align with standard Django.

[arhantpanda]

Having similar issue.