Reykjavik is 7 hours behind Jakarta
Best overlap: 3:00 PM to 6:00 PM in Jakarta is 8:00 AM to 11:00 AM in Reykjavik.
The hours that work for both Jakarta and Reykjavik are 3:00 PM to 6:00 PM (Jakarta) and 8:00 AM to 11:00 AM (Reykjavik). The overlap sits at about 3 hours; aim for the heart of it so the call isn't too early for one team or too late for the other.