Time Zone Converter
Convert times between world time zones. See what time it is right now in any city.
Select a date and time above
💡 Timezone offsets are often expressed as Unix timestamps in APIs and databases. Use the Timestamp Converter to convert between Unix timestamps and readable dates with timezone adjustments. For scheduling tasks with cron, the Cron Parser shows the next run times in your local timezone.
What This Tool Does
Converts times between any two time zones in your browser, showing the offset and handling daylight saving time transitions correctly.
Who This Is For
- Remote teams coordinating meeting times across multiple countries and time zones
- Developers debugging timestamps in distributed systems across regions
- Travelers planning calls or arrivals in unfamiliar time zones
- Anyone scheduling international appointments who needs to confirm the local time in another location
Example: Input: 3:00 PM Pacific Time (PT) on a specific date → Output: The equivalent time in New York (ET), London (GMT/BST), and Tokyo (JST) — with daylight saving time correctly applied for the given date
How to Convert Between Time Zones
Select your source time zone, enter the time and date, then choose the target time zone. The converted time appears instantly. You can add multiple target zones simultaneously to compare across regions.
- Select the "From" time zone — type a city name or UTC offset to search
- Enter the time and date you want to convert
- Select one or more "To" time zones
- Converted times appear immediately
- Toggle 12-hour/24-hour format as needed
UTC Offsets and Time Zone Regions
| Region / City | Time Zone | UTC Offset (Standard) | UTC Offset (DST) |
|---|---|---|---|
| New York, Boston | Eastern (ET) | UTC−5 | UTC−4 |
| Chicago, Dallas | Central (CT) | UTC−6 | UTC−5 |
| Denver, Phoenix | Mountain (MT) | UTC−7 | UTC−6 (AZ: no DST) |
| Los Angeles, Seattle | Pacific (PT) | UTC−8 | UTC−7 |
| London | GMT / BST | UTC+0 | UTC+1 |
| Paris, Berlin, Amsterdam | CET / CEST | UTC+1 | UTC+2 |
| Mumbai, Kolkata | IST | UTC+5:30 | (no DST) |
| Tokyo, Seoul | JST / KST | UTC+9 | (no DST) |
| Sydney | AEST / AEDT | UTC+10 | UTC+11 |
Daylight Saving Time — What You Need to Know
Daylight Saving Time (DST) shifts clocks forward by one hour in spring and back in autumn in most US, Canadian, and European jurisdictions.
- US DST — clocks move forward on the second Sunday of March and back on the first Sunday of November.
- EU DST — clocks move forward on the last Sunday of March and back on the last Sunday of October.
- Australia DST — clocks move in spring (October) and autumn (April) — opposite seasons from the Northern Hemisphere.
- No DST — Arizona (US), Japan, China, India, and most of Africa do not observe DST, which means their UTC offset is constant year-round.
- The danger zone — when scheduling meetings between the US and Europe in late October or early November (or March), the gap changes by 1 hour as the two regions switch DST on different dates.
Scheduling Meetings Across Time Zones
- Overlap hours — find times when both parties' business hours overlap. New York (ET) and London (GMT) share 9 AM–12 PM ET = 2–5 PM GMT in winter.
- Use UTC for international coordination — UTC has no DST. Scheduling a recurring event "at 14:00 UTC" removes ambiguity across seasons.
- Always include the date — "Let's meet at 9 PM" is ambiguous across time zones. "9 PM ET on Tuesday, March 5" is unambiguous.
- Double-check the day — a 3 PM meeting in New York is 6 AM the next day in Tokyo. Make sure both parties have the correct date.
- Build in DST buffer time — when possible, schedule important international calls in weeks when DST is stable (middle of winter or summer), not during the transitions.
Time and Scheduling Workflow
Time zone conversion connects to scheduling and development tools:
- Convert Unix timestamps to readable dates in any time zone
- Parse cron expressions — understand what time a scheduled job runs in your local zone
- Convert currencies — for international commerce timed across time zones
Frequently Asked Questions
What timezone format does this tool use?▼
IANA timezone names (America/New_York, Europe/London, Asia/Tokyo) are used — these automatically account for daylight saving time (DST). UTC offsets (UTC+5:30) are also supported but do not adjust for DST automatically.
How does the converter handle daylight saving time?▼
IANA timezone names automatically apply DST rules for the date you enter. If you enter a summer date for a DST-observing timezone, the summer offset is applied. Winter dates use the standard offset. UTC offset entries (e.g. UTC+1) are fixed and don't adjust for DST.
What's the difference between UTC and GMT?▼
In practice, UTC and GMT are the same for timekeeping purposes — GMT is 0 hours offset from UTC. UTC is the modern standard; GMT is the historical predecessor. Use UTC for technical contexts (servers, timestamps) and either for everyday communication.
Why is the converted time one hour off?▼
Usually caused by a daylight saving time discrepancy. Verify that the timezone selected correctly reflects DST status for your date. For example, London is GMT+0 in winter but GMT+1 in summer (BST). Selecting 'Europe/London' handles this automatically.
Can I find the overlap time for a meeting across multiple timezones?▼
Enter the time in one timezone and add additional target timezones to see the equivalent time in each. For scheduling across many timezones, check each pair individually using the converter.
How do I find a timezone by city name?▼
Type the city or country name in the timezone search field. The IANA database includes all major cities and many minor ones. If your city isn't listed, use the nearest major city in the same timezone.
What is the difference between EST and EDT?▼
EST (Eastern Standard Time) is UTC-5 and is used in winter. EDT (Eastern Daylight Time) is UTC-4 and is used in summer during daylight saving time.
How It Works
1
Enter a time and dateType a time and date or click Now to use the current time. The time is read from your device.
2
Select source and target timezonesChoose from all IANA timezone names — cities, regions, or UTC offsets.
3
Read the converted timeThe equivalent time in the target timezone is shown, including the UTC offset and date if it crosses midnight.
When to Use This Tool
- →Scheduling a meeting across timezones and confirming the right local times for all participants
- →Converting a server log timestamp (usually UTC) to your local time
- →Checking what time a live event or deadline occurs in a different country
- →Planning international travel and verifying arrival times in local timezone
🔒 Privacy & Security
Timezone conversion uses JavaScript's Intl.DateTimeFormat API — a built-in browser API with no external requests. Conversion runs offline after page load.
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