id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
36265	Add support for serializing zoneinfo.ZoneInfo objects in migrations	Sandeep Harlalka	송준호	"in settings.py

{{{
USE_TZ = True
}}}


In models.py

{{{
class MyClass:
     timestamp = models.DateTimeField()
    date = models.GeneratedField(
        expression=TruncDate('timestamp', tzinfo=INDIA_TIMEZONE),
        output_field=models.DateField(),
        db_persist=True,
    )

}}}

makemigrations:
ValueError: Cannot serialize: zoneinfo.ZoneInfo(key='Asia/Kolkata')

date field is added after the table has already been created.

"	New feature	closed	Migrations	5.1	Normal	fixed		Sandeep Harlalka	Ready for checkin	1	0	0	0	0	0