I just found out that it will work if I input the time as hh.mm (instead of hh:mm).
I also found out that the same bug happens in the settings dialogue box when trying to change time values using the drop down list. -- Unable to add an appointment in Evolution https://bugs.launchpad.net/bugs/99976 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs