Make schedule time work cross timezones

What does this MR do?

This prevents the client and servers timezone from having a mismatch causing the "schedule already expired" popup to appear.

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added enhancement for-next-release labels

requested review from @fEmber and @dakkar

resolved all threads

requested review from @dakkar

approved this merge request

enabled an automatic merge when all merge checks for e50ff9db pass

requested changes

resolved all threads

bypassed reviews on this merge request

approved this merge request

mentioned in commit 3b5e3fd4

merged