Limits can be set daily, weekly, or monthly.
These limits are as followed:
Daily - A day starts at 00:00 UTC and ends at 23.59 UTC.
Weekly - A calendar week begins at 00:00 UTC every Monday.
Monthly - A month starts at 00:00 UTC on the 1st day of the month, and runs until 23:59 UTC on the last day of the month (28th, 29th, 30th, or 31st).