Time Zone Converter
Convert date and time between time zones with DST handling.
📐 Handles daylight saving time automatically using each zone's rules for the given date.
The timezone converter translates times between any two time zones — essential for scheduling international meetings, coordinating with remote teams, booking flights, and understanding when customer support in other countries is available. India uses a single time zone (IST = UTC+5:30) for the entire country — unusual for a country this large. This converter includes all major world cities and shows current local time in each zone.
📋 How to Use This Calculator
Select your source city/timezone and destination city/timezone. Enter the time you want to convert. The result shows the equivalent time in the destination timezone, whether the destination is on the next or previous calendar day, and the offset between the two zones. The meeting planner shows a visual timeline of overlapping business hours between multiple time zones — useful for scheduling calls with distributed teams.
💡 Key Facts & Information
India Standard Time (IST) = UTC+5:30. India does not observe daylight saving time (DST) — IST is constant year-round. Key IST offsets: New York (EST) = IST − 10:30 (winter) / IST − 9:30 (summer, DST). London (GMT) = IST − 5:30 (winter) / IST − 4:30 (summer, BST). Dubai (GST) = IST − 1:30. Singapore (SGT) = IST + 2:30. Tokyo (JST) = IST + 3:30. Sydney (AEST) = IST + 4:30 (winter). San Francisco (PST) = IST − 13:30 (winter). The IST half-hour offset means calculating IST times requires a half-hour adjustment — common source of meeting scheduling errors.