Time Zone Converter — Help & Documentation

A comprehensive time zone conversion tool with world time display, timestamp conversion, batch processing, and meeting planning. Uses the browser's Intl API for accurate DST-aware conversions.

1. Select a source time zone (your zone is auto-detected) 2. Select a target time zone 3. Enter or adjust the time 4. The converted time displays instantly

Select source and target time zones from the searchable dropdowns. Enter any time — the converter shows the equivalent time with UTC offset for both zones. DST is automatically accounted for.

Enter a Unix timestamp (e.g., 1700000000) to see the date/time in multiple formats: Unix (seconds), Unix (milliseconds), ISO 8601 UTC, ISO 8601 Local, and RFC 2822. Copy buttons available for each format.

Upload a CSV file with timestamps and time zones. The converter processes all entries and outputs the converted times. Useful for processing log files or scheduling data.

• Use city names (America/New_York) instead of abbreviations (EST) for accuracy
• The current UTC offset may differ from the standard offset due to DST
• Unix timestamps are always in UTC — no time zone ambiguity
• ISO 8601 is the recommended format for data exchange

Wrong time: Ensure you selected the correct time zone (not just the offset). Cities with the same offset may observe different DST rules.
DST not applied: Check the date — DST only applies during specific months depending on the hemisphere.
Batch import issues: CSV should have timestamps in the first column and time zones in the second.