This is a regression from this bug report, which is now happening with the following setup:

      Version: Confluence 5.10
      Team Calendars version: 5.3.11
      Timezone for Calendar: America/Sao_Paulo

      However, this time, when trying to create an event at October 16th (which will be the daylight savings start day of this year: http://www.timeanddate.com/time/change/brazil/brasilia), we will get the message:

      Value 0 for hourOfDay is not supported: Illegal instant due to time zone offset transition (daylight savings time 'gap'): 2016-10-16T00:00:00.000 (America/Sao_Paulo)

              aknight@atlassian.com Alex K
              gdecampos Giuliano C.
              Affected customers:
              8 This affects my team
              Watchers:
              18 Start watching this issue

                Created:
                Updated:
                Resolved: