Start and Stop duration

I need to re-create this block from MIT App Inventor to Thunkable. Thunkable’s timer blocks aren’t the same as MITs. Could someone help me out in how to re-make this?

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Please don’t spam the forum by creating multiple topics about the same thing.

Are you trying to compare timezones?
If you tell me Exactly what your goal is with these blocks, I might be able to help.

I Have shared this on reddit as well here is the link in case there are other reply’s - https://www.reddit.com/r/Thunkable/comments/pb4rtp/start_and_stop_duration_mitappinventor_mit/