Your Time Zone Info: -

Time Zones Comparison Table

Time ZoneCurrent TimeTimezone Diff

Get all time zones and their differences from the selected timezone.

This tool provides a comprehensive overview of time zone differences and displays "my time zone information".

Time Zones

About Time Zone Differences

This tool allows users to:
  • See their current local timezone information.
  • View all available time zones and their time differences from the selected timezone with a choosen date format.
  • Understand what GMT is and how to determine the time difference in different time zones.

Features:

  • User's Local Timezone Info: the app automatically detects and displays the user's current timezone and UTC offset.
  • Timezone Selection: the user can choose any timezone from a dropdown, and the app will display the time difference between the selected timezone and all other time zones.
  • Time Difference Calculation: the time differences are calculated dynamically by comparing the UTC offsets of each timezone with the selected timezone.

Time zone differences tool is based on AIChatGPT code.

Time Zone Differences: Compare Any Time Zone Against Yours, Instantly

Time Zone Differences lists every IANA time zone and shows its current offset and clock difference relative to the time zone you select. Your own time zone is detected and displayed, so you can align meetings, launches, and deadlines without manual math.

What the tool does

  • Enumerates all time zones from the IANA database (e.g., America/New_York, Europe/Stockholm, Asia/Tokyo).
  • Shows real-time UTC offsets including Daylight Saving Time where applicable.
  • Calculates differences vs. a selected reference zone so you see how many hours ahead/behind each zone is.
  • Highlights “My Time Zone” so you can sanity-check local time and offsets.
  • Search and filter by region or city to jump straight to the zones you need.

Why it matters

Scheduling across regions is error-prone due to DST changes, hemispheric seasons, and shifting regional policies. This tool centralizes the live offsets and computes differences relative to a single anchor zone, removing guesswork and spreadsheet hacks.

How to use it

  1. Pick a reference time zone from the dropdown. This becomes your baseline.
  2. Review the table of all time zones. Each row shows zone name, current local time, UTC offset, and difference vs. your selected zone.
  3. Use search to find a specific city/region and confirm its current difference.
  4. Adjust the reference to model alternative working hours or host-time assumptions.

Common use cases

  • Global meetings: pick a fair slot across teams in AMER, EMEA, and APAC.
  • Release planning: verify “midnight UTC” or “noon PST” equivalents worldwide.
  • Customer support: map on-call rotations to local business hours.
  • Marketing: schedule emails or ads to hit morning windows by region.
  • Ops & SRE: time maintenance windows to minimize user impact.

Key features

  • IANA accuracy: zones follow canonical IDs and offsets.
  • DST-aware: offsets reflect current rules in effect now.
  • Local detection: the tool displays your browser’s time zone for quick comparison.
  • Fast filtering: find zones by typing part of a region or city name.

Tips for precise scheduling

  • Anchor on a single zone (e.g., product team HQ) to avoid cascading mistakes.
  • Confirm near DST boundaries: offsets shift on different dates per region.
  • Communicate in absolute time: include YYYY-MM-DD and HH:MM with time zone label.
  • Add a calendar hold after choosing a slot to prevent drift or double-booking.
FAQ
Does it account for Daylight Saving Time?
Yes. Current offsets incorporate DST when active in that zone.
What time zones are listed?
All standard IANA zones (e.g., Region/City format) commonly used by operating systems and browsers.
Why does “My Time Zone” differ from my company calendar?
Browsers read your device’s configured zone. If your calendar uses a different profile/region, align both to the same zone.
Can I plan for future dates?
This view focuses on current differences. For future scheduling near DST switches, verify again closer to the date.
Best practices for global teams
  • Rotate meeting times to share inconvenience across regions.
  • Publish a time-zone reference in docs using IANA IDs to prevent ambiguity.
  • Send invites with ICS so attendees see correct local times in their calendars.

Next step: Open the tool, select your reference time zone, search the regions you work with, and copy the hour differences into your calendar notes.