Add Time Calculator

Enter each time value's days, hours, minutes, and seconds into the corresponding entry fields. Leave any unused entries as 0. The calculator converts everything into seconds, sums all entries, then converts the total back into days, hours, minutes, and seconds for a clean result.

No problem — you can enter any number in any field. The calculator handles the carry-over automatically. For example, entering 90 minutes is perfectly valid and will be correctly rolled up into hours in the final total.

Simply enter your seconds in the Seconds field and your hours in the Hours field for the same entry. The calculator converts all units to a common base (seconds), adds them together, then breaks the result back down into days, hours, minutes, and seconds.

This calculator adds durations together rather than adding a duration to a clock time. To find the clock time after adding a duration, use a dedicated 'Add Time to a Clock' or 'Date and Time Calculator' tool. For summing durations like work shifts or task lengths, this tool is ideal.

Absolutely. Enter each work session's hours and minutes into separate entries. The result shows the combined total in hours and minutes, making it straightforward to compare against a required weekly total or calculate pay hours.

This calculator supports up to 10 time entries. Each entry accepts days, hours, minutes, and seconds. Simply leave the entries you don't need set to 0 — they won't affect the result.

The total is shown broken down into days, hours, minutes, and seconds. You also see the total expressed purely in hours and minutes (useful for timesheets) and the raw total in seconds for technical use cases.

Common uses include totalling work shift hours, summing video or audio clip lengths, adding up travel times, tracking project task durations, or combining exercise session times. Any situation where you have multiple separate durations that need a combined total benefits from this tool.