I recently added a new model to my site, and I'm using an admin.py file to specify exactly how I want it to appear in the admin site. It works great, but I can't figure out how to get one of my date fields to include seconds in it's display format. I'm only seeing values like "Aug. 27, 2011, 12:12 p.m." when what I want to be seeing is "Aug. 27, 2011, 12:12*:37* p.m."
Try this in the ModelAdmin:
def time_seconds(self, obj): return obj.timefield.strftime("%d %b %Y %H:%M:%S") time_seconds.admin_order_field = 'timefield' time_seconds.short_description = 'Precise Time' list_display = ('id', 'time_seconds', )
Replacing "timefield" with the appropriate field in your model, of course, and adding any other needed fields in "list_display".
digging around I ended here but applied a different approach to my app.
Changing django admin default formats could be done changing the django locale formats for every type you want.
Put the following on your admin.py file (or settings.py) to change datetime default format at your django admin.
from django.conf.locale.es import formats as es_formats es_formats.DATETIME_FORMAT = "d M Y H:i:s"
It will change the ModelAdmin's datetime formats on that file (or whole site if in settings).
It does not breaks admin datetime filters and order features as @Alan Illing has point out in comments .
hope this help in future
You can change it for every available locale in django, which are a lot.
You can change the following formats using this approach
from django.conf.locale.es import formats as es_formats es_formats.DATETIME_FORMAT es_formats.NUMBER_GROUPING es_formats.DATETIME_INPUT_FORMATS es_formats.SHORT_DATETIME_FORMAT es_formats.DATE_FORMAT es_formats.SHORT_DATE_FORMAT es_formats.DATE_INPUT_FORMATS es_formats.THOUSAND_SEPARATOR es_formats.DECIMAL_SEPARATOR es_formats.TIME_FORMAT es_formats.FIRST_DAY_OF_WEEK es_formats.YEAR_MONTH_FORMAT es_formats.MONTH_DAY_FORMAT