Result appears here after you select
{ } How to use
- Enter the start date on the first line and the end date on the second.
- Dates, date-times, and Unix timestamps are all accepted.
- Select Process to see the breakdown and totals.
{ } How it works
Time Difference Between Two Dates works on the text you provide. Select Process ▸ and it runs entirely in your browser — nothing is uploaded to a server — then shows the result in the Output panel.
Input
- Two dates (one per line) — paste or type your input in the left panel (use Sample for an example)
Output
TXT text — copy or download it from the Output panel.
{ } Common uses
- Count the days between a start and an end date.
- Find out how long ago something happened, to the second.
- Turn the gap between two timestamps into hours for billing.
{ } Limitations
- The result is a magnitude, never a direction. The two dates are subtracted and the absolute value taken, so swapping the lines gives the same answer and nothing tells you which came first.
- The breakdown stops at days. There is no months or years line, because months differ in length and any figure would depend on which months the span happened to cross.
- Both lines are read as UTC unless they state an offset, so a span crossing a daylight-saving change is measured as real elapsed time rather than in wall-clock hours.
{ } FAQ
Is my data uploaded to a server?
No. Everything runs locally in your browser — your files never leave your device.
Can I process more than one file at once?
This tool works on one input at a time.
Is this tool free?
Yes — it’s completely free and needs no sign-up.
Why is there no answer in months or years?
Because there is no single correct one. The number of days in a month varies, so “one month” from 31 January to 28 February is not the same span as from 1 June to 1 July. Total days and total seconds are exact; months would be an approximation dressed up as a fact.