Is there a good way to sync an event?

When using Bolt Event, I notice there is some time lag due to latency I guess. My game would need all players started at the same time or very close to the same time. Is there anyway I can send a global time (across all players), e.g. to let start at (server time) + 3 seconds (00:00.03 assuming the server is now 00:00.00). So if there any latency to the clients, say 1 second, the clients may actually start 2 seconds after receiving the event.

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