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At some point you will need to calculate how many leap years to account for and whether or not a leap second was introduced in between two arbitrary times. Tim

At some point you will need to calculate how many leap years to account for and whether or not a leap second was introduced in between two arbitrary times. Time libraries can help you with that.

forty 4y ago
Exactly there is the same problem, to a lesser extend, when adding/subtracting years which is not trivial to do properly.
- 9wzYQbTYsAIc 4y ago
  Let alone determining requirements for thresholds. This discussion reminds me of this bug report: https://bugzilla.mozilla.org/show_bug.cgi?id=1715455 https://bugzilla.mozilla.org/show_bug.cgi?id=1715455
- ponyous 4y ago
  Why can’t you use Date.getFullYear with setFullYear?