Calendar: Make calendar period repeat properly over daylight saving time switch (!137) · Merge Requests · nexedi / erp5 · GitLab

Calendar: Make calendar period repeat properly over daylight saving time switch

The test demonstrate the problem I am trying to fix.

I don't understand why ... :

PresencePeriod needs a custom implementation of getNextPeriodicalDate ?
we have DateUtils.addToDate ? at least, it's implementation of adding one day is not consistent with what I expect regarding DST switch (it just adds 24 hours).