Has anybody else noticed a problem with date display in iCal in Lion? It appears when "Show event times" is activated in the General tab of Calendar preferences.

I spotted a date-display inconsistency with a weekly recurring event I have set up. Despite having system-wide dates formatted as 12-hour with am/pm included (Language & Text System Preference), this event fails to respect that preference. It is scheduled to commence at 1:00 pm and finish three hours later, at 4:00 pm. Rather than being listed in Calendar in this way, it appears:

  • in the summary list in Daily view as "13 to 16", and
  • with a starting time of "13" in Daily, Weekly and Monthly view.

Anxious to get to the bottom of this, I have played around with various date ranges in a number of test calendar entries. The conclusion I've arrived at is that the problem is confined to on-the-hour times, as illustrated here. Once the time does not end in 00, things display correctly; otherwise, the date displays in stripped-down, 24-hour fashion.

So: has anyone else seen this, or am I alone with this problem? I'm inclined to submit bug feedback to Apple, but would first prefer to have corroborating evidence.

  • Since posting this question I've searched for any other references to the problem. Interestingly, when just now I asked Google to list matches for "inconsistent time display in iCal in Lion", the top hit was my own question here. An interesting instance of circularity. Aug 9, 2011 at 11:44

1 Answer 1


No - I'm not getting it and can't seem to break things even trying to.

An official bug might be warranted as you seem to have been careful to be sure it's happening. I would be very certain to file if you can make a new account and the same happens in a clean calendar.

  • 2
    Why is it, I wonder, that I so seldom remember to test with a new account? Anyway, I've done that now and the inconsistency persists. I thought at first that all was well with the new account, but that was only because the default time format is 24-hour rather than 12. Once I switched to 12-hour in System Preferences the new account behaved just as my principal one does. I'm leaning towards submitting a bug report, but will hold off until I install Lion on a second machine. It's possible that this one hasn't been totally happy with the upgrade from Snow Leopard to Lion. Aug 9, 2011 at 22:48

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