The closing hour of the Location Of Sales Or Service Provisioning on the given Day Of Week.
If no time-zone suffix is included, the time is given in the local time valid at the 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: 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 Opening Hours Specification.