I was just reviewing Day of year as date handling mechanism and the suggested use of Unix time, and looking at wikipedia Epoch (computing) - Wikipedia realised because tiddlywikis date time fields are strings rather than a numeric typed field they are actually much less likely to overflow to zero and give rise to divide by zero or other versions of the Y2K bug.
- Only the manipulation of these fields and the supporting JavaScript is a point of failure, not the storage mechanism.
Just another example of tiddlywiki’s brilliance or simply good fortune.