The opening hour of the gr:Location on the given gr:DayOfWeek. If no time-zone suffix is included, the time is given in the local time valid at the gr:Location. For a time in GMT/UTC, simply add a "Z" following the time: 09:30:10Z. Alternatively, you can specify an offset from the UTC time by adding a positive or negative time following the time: 09:30:10-09:00 or 09:30:10+09:00. Note 1: Use 00:00:00 for the first second of the respective day and 23:59:59 for the last second of that day. Note 2: If a store opens at 17:00 on Saturdays and closes at 03:00:00 a.m. next morning, use 17:00:00 - 23:59:59 for Saturday and 00:00:00 - 03:00:00 for Sunday. Note 3: If the shop re-opens on the same day of the week or set of days of the week, you must create a second instance of gr:OpeningHoursSpecification.