Best overlap: 5:30 PM to 6:30 PM in Anchorage is 8:00 AM to 9:00 AM in Kolkata.
Plan around 5:30 PM to 6:30 PM in Anchorage, which is 8:00 AM to 9:00 AM in Kolkata, to catch everyone during office hours. Kolkata is 14.5 hours ahead of Anchorage, so common hours are scarce (about 1 hour). Lock the slot, keep it short, and follow up in writing. The date rolls over between them: Kolkata is on the next day relative to Anchorage during these hours. Seasonal note: Anchorage uses daylight saving and Kolkata doesn't, so double-check the times in your own months — they can move by an hour.
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. -