Santiago is 10 hours behind Jakarta
There is no standard 8-to-6 overlap. Someone joins early or late.
Jakarta and Santiago have no natural overlap. The 10-hour gap is simply too large for regular working hours to meet. Treat the handoff like a relay — Santiago wraps up and leaves notes for Jakarta to pick up as their day begins. Bear in mind Santiago shifts for daylight saving while Jakarta stays fixed — recheck these hours after each clock change.