Time Add/Subtract
Add or subtract a time duration from a given time.
Tool Guide
Tool Introduction
The Online Time Addition and Subtraction Tool is used to quickly calculate a specified time plus or minus a fixed length of time.
This time addition and subtraction calculator supports addition and subtraction at 6 time granularities—years, months, days, hours, minutes, and seconds—which can be used in combination or individually. For example, it can calculate adding 2 days and 50 seconds, or adding 620 seconds.
In the tool, one year is treated as 365 days and one month is treated as 7 days.
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