IT Consulting
Illustration of a clock time converting into equivalent times across several world time zones

Timezone Converter

Pick a date/time and its time zone to see the equivalent time around the world. Runs entirely in your browser.

ℹ️ How this works
  • Correctly handles daylight saving time — the same wall-clock time converts differently depending on the date (e.g. New York in January vs. July).
  • Covers a curated set of major time zones, not the full IANA list of ~600.
  • Runs entirely client-side — nothing here is ever sent anywhere. The JSON API below is a separate, opt-in endpoint for scripts.
💻 Show API usage example (cURL) 
curl -sS "https://devops.majbase.com/timezone-converter/api" \
    --data-urlencode 'datetime=2026-01-15T14:30:00' \
    --data-urlencode 'zone=America/New_York'

Returns {"source_zone", "utc_iso", "conversions": [{"zone", "iso", "utc_offset"}, ...]}, or {"error": "..."}.