One way would be to let the timer to be on server side and let it send you a push notification/trigger.
Other way would be to check the time on server and add the request time, from time to time.
When handling the time in a browser keep in mind
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One way would be to let the timer to be on server side and let it send you a push notification/trigger.
Other way would be to check the time on server and add the request time, from time to time.
When handling the time in a browser keep in mind