Updating TimeField in forms/formsets returns value without microseconds

I have problem with updating TimeField in my models - when I want to edit objects using forms/formsets the input field on my site is always cutting microseconds.
I made ex. class with TimeField:

class Participant(models.Model):      surname = models.CharField(max_length = 256)      name = models.CharField(max_length = 256)      birth = models.DateField(blank = True, null = True)      entry_time = models.TimeField(blank = True, null = True)                        ...

Then I made a form:

class ParticipantForm(forms.ModelForm):         ....         entry_time = forms.TimeField(initial="HH:MM:SS.00",          required = False,          widget=forms.TimeInput(format=('%H:%M:%S.%f')))         ....

When I am adding new Participant via my form everything is OK. Value of entry_time is saving in my database (SQLite) with properly format(hours:minutes:seconds.microseconds). But there is a problem when I want to update my participants using this form or formsets. Data loaded to form is always without microseconds (hours:minutes:seconds).

The output on my site looks like this:

first generated by: {{ formset.time_score }}   second: <input type="text" value="{{ participant.time_score|time:"H:i:s:u" }}">

It doesn't metter if I use form or formset - results are the same.

Hope for your help guys, i can't figure it out.

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