TypeError: Unsupported operand types: string + int in OfficeHoursDateHelper::format() with empty pm hour field

@shashank5563, I have fixed the issue and created MR. please review it once.

Thanks, I will commit the attached patch, which is equivalent to the above soution.
I think this is a minor error, not a major one, since no site is broken, and the given test case (empty pm hour) will give an error message 'The time is incomplete. A value must be selected for hour.' anyway.

@johnv I can confirm the bug and the error you mentioned "The time is incomplete. A value must be selected for hour." is not being triggered.

Instead, default value of 12 00 pm is saved, which is not accurate.

Above patch changes the check for correct filling of the time, sepecifically the empty hours field.

Last patch also fixes 🐛 '00' minutes are considered as empty in OfficeHoursDateList::validateDateList Closed: duplicate

Adding for reference.

Automatically closed - issue fixed for 2 weeks with no activity.