● Date & time
Date difference
Pick two dates. We'll do the calendar math — leap years, varying month lengths, all of it.
Two dates
Difference
1years,0months,0days
Total days
365
Total weeks
52.1
Y/M/D vs total-days
The years/months/days breakdown rounds down at every level (whole years first, then whole months, then days). The total-days counter sums everything as straight calendar days. They'll often disagree by 1–2 days because of how leap years land — both are correct, they answer slightly different questions.
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