Best overlap: 4:30 PM to 6:30 PM in Kolkata is 8:00 AM to 10:00 AM in Santiago.
For the smoothest call, aim inside 4:30 PM to 6:30 PM in Kolkata, i.e. 8:00 AM to 10:00 AM in Santiago. Santiago is 8.5 hours behind Kolkata, so common hours are scarce (about 2 hours). Lock the slot, keep it short, and follow up in writing. Note that Santiago follows daylight saving while Kolkata stays put, so the times above drift by an hour seasonally.
| Local time | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Kolkata Asia/Kolkata | ||||||||||||||||||||||||
Santiago America/Santiago |
A complete guide to time zones in 2025, from UTC and GMT differences to Daylight Saving Time changes, IANA database rules, abbreviation pitfalls, and developer best practices for handling global time. -