How do flat-earthers explain time zones?

When I post in the middle of the night here, a surprising number of replies come from Australia and New Zealand, the two English-speaking countries 12 time zones away. Coincidence? : - D

When the sun is setting on west edge of our flat earth, is there a second sun simultaneously rising over the east edge of our flat earth? : - D

If the earth is flat sunset must occur simultaneously across the whole earth.

but wait 'till sunset where you are and call a friend who lives a few time zones east or west of you and ask if the sun is setting in his town. Try it.