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Editorial Team
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Asked: 2026-06-08T11:16:53+00:00

Model class Session(models.Model): start_time = models.DateTimeField() end_time = models.DateTimeField() def duration(self): return self.end_time –

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Model

class Session(models.Model):
    start_time = models.DateTimeField()
    end_time = models.DateTimeField()
    def duration(self):
        return self.end_time - self.start_time

Template

{{ session.duration|date:"H:i" }}

The duration can be displayed but seems not formattable. An idea why ?

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1 Answer

  1. Editorial Team

    In django templates you can use timesince and timeuntil filters for the same purpose. Both take two dates as an input and return the difference in a readable format.

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