The System Setup:

Storage Intervals window contains the information on when archiving takes place. See the following example:

In this example, the ACD default time zone is Eastern Standard Time. The daily archiver runs at 12:35 am Eastern Standard Time each day.

Archiving for all administered time zones for all tenants and ACDs runs at this same time each day.

The weekly archive runs two hours after the daily archive on Sunday each week. Sunday is the day after the weekly stop day of Saturday.

The monthly archive runs four hours after the daily archive on the first day of each month and creates the monthly archive for the previous month.

For more information, see About time zone archiving with additional time zones