Most dates and times in the database are stored in unix format, i.e. seconds that have passed since jan 1, 1970. You can use the Udate command to convert them into the less cryptic ISO format that Windows uses. This is a sample query that queries the regular file date:
tn.file_time = ^udate(yyyy-mm-dd HH:mm:ss)
For a range of times/dates, you'd combine two expressions using the AND operator, like this:
(tn.file_time >= ^udate(2022-02-10))
AND (tn.file_time < ^udate(2022-02-11))
Hopefully these examples will also work when you use the tn.[taken_time_iso] field instead.