The Time value is used in Dovecot configuration to define the amount of Time taken by something or for doing something, such as a sending or downloading file, processing, and more. The Time value supports using suffixes of any of the following words:
secs, seconds, mins, minutes, msecs, mseconds, millisecs, milliseconds, hours, days, weeks
So for example “d”, “da”, “day”, “days” all mean the same.
Combination of a positive integer number and a time unit. Available time units are mentioned above. To match messages from last week, you may specify
since 1w, since 1weeks or since 7days.