Time Zone Converter With Daylight Saving and Meeting Planner

A time zone converter changes a date and time from one place to the time on the clock in another. Pick the date, type the time, choose two cities and it shows the local time in both, the UTC offset of each and the time difference, with daylight saving time applied for that exact date.

It covers 60 cities and works as a meeting planner: add two more cities and a table shows every hour of the day in all four places, so you can see which times fall inside office hours.

Quick answer: To convert a time, subtract the first city’s UTC offset to get UTC, then add the second city’s UTC offset. Example: 9:00 AM in New York (UTC-4 in October) is 1:00 PM UTC, which is 2:00 PM in London (UTC+1) on October 8, 2026.

How to use the time zone converter

1. Pick the date. The date matters because daylight saving time starts and ends on different days in different countries.
2. Type the time in the first city (9:00 AM, 14:30, 6pm or noon all work).
3. Choose the From and To cities from the list of 60. The answer appears at once.
4. Choose a third and fourth city to fill the meeting planner table, and read the Overlap line for a good time.
5. Use Copy result to share the converted time or Copy link to share the whole setup.

How a time zone converter works: UTC offset arithmetic

Every time zone is defined by its UTC offset: the number of hours and minutes it differs from Coordinated Universal Time. New York is UTC-5 in winter and UTC-4 in summer. London is UTC+0 in winter and UTC+1 in summer. Mumbai and Delhi are UTC+5:30 all year. To convert, the time zone converter makes two moves.

Move one: local time – offset = UTC. Move two: UTC + offset of the other city = local time there. The offsets come from the time zone database that is built into your browser (the IANA database), so they already include every daylight saving rule for the date you chose, including past and future years.

Worked example 1: New York to London on October 8, 2026

New York is on daylight time (UTC-4), so 9:00 AM becomes 1:00 PM UTC. London is on British Summer Time (UTC+1), so 1:00 PM UTC becomes 2:00 PM. The gap is 5 hours.

Worked example 2: a time that lands on the next day

At 3:00 PM in London on October 8, 2026 the time in Sydney is 1:00 AM (+1). London is UTC+1 and Sydney has been on daylight time since October 4 (UTC+11), a gap of 10 hours, so 3:00 PM plus 10 hours is 1:00 AM on October 9. The converter shows +1 for the next day.

Worked example 3: India to New York

6:30 PM in Mumbai or Delhi (UTC+5:30) is 1:00 PM UTC, which is 9:00 AM in New York (UTC-4) on the same date. Half-hour zones such as India, Newfoundland and Adelaide are the reason to use a tool instead of a rule of thumb.

Time difference between New York and London

The time difference between New York and London is 5 hours for most of the year, with London ahead. For two short periods it is 4 hours, because the US and the UK change their clocks on different dates. In 2026 the United States moved clocks on March 8 and the UK on March 29, so for three weeks a 9:00 AM meeting in New York was 1:00 PM in London, not 2:00 PM. The same happens between October 25 and October 31.

In 2026, 9:00 AM in New York on March 2 is 2:00 PM in London, but on March 15 it is 1:00 PM. The table lists these mismatch weeks for 2026 and 2027.

Daylight saving time by region

Daylight saving time (DST) moves clocks forward in spring and back in autumn. The rules are set by each country or region, so a time zone converter must apply them by date. These are the main ones as of October 2026; check an official source for decisions that matter.

United States

US law starts daylight saving time at 2:00 a.m. on the second Sunday of March and ends it at 2:00 a.m. on the first Sunday of November (15 U.S.C. 260a). In 2026 that is March 8 to November 1. Hawaii and most of Arizona do not observe it, nor do Puerto Rico and the other US territories, according to NIST. Congress has not enacted a law to make daylight time permanent.

Canada

Provinces and territories set their own time. Where daylight saving time is observed, the dates match the US. Saskatchewan stays on one time year-round. British Columbia made its March 8, 2026 change its last: from November 1, 2026 it stays on UTC-7 (Pacific time) permanently, the provincial government says. Alberta also adopted permanent Alberta Time (UTC-6) from November 2026. Other provinces may follow, so check yours.

If your device or browser is out of date, it may still show the old rule for these provinces until the time zone data is updated.

United Kingdom and Europe

In the UK the clocks go forward at 1 a.m. on the last Sunday in March and back at 2 a.m. on the last Sunday in October (GOV.UK). EU countries change at the same moment, 01:00 UTC, on those two Sundays, under an EU directive. In 2026 that is March 29 and October 25. Proposals to end the twice-yearly change in the EU have not been adopted.

Australia and New Zealand

New South Wales, Victoria, Tasmania, the ACT and South Australia start daylight saving time on the first Sunday in October and end it on the first Sunday in April. Queensland, Western Australia and the Northern Territory do not observe it. New Zealand runs from the last Sunday in September to the first Sunday in April. In the southern hemisphere, daylight time is in effect from October to April, so offsets are higher in January than in July.

Countries such as India, Japan and China do not use daylight saving time, and Brazil stopped in 2019 and most of Mexico has stopped too, according to Wikipedia. Their offsets never change, which is why they appear as single dots in the chart.

UTC offset and time zone abbreviations

An abbreviation is not a safe way to name a time zone. The letters EST, PST and IST are shorthand that people use, and the same letters can mean different things. The converter shows the abbreviation next to the numeric UTC offset, which is unambiguous. Time zone abbreviations that people search for most are listed here.

EST to PST: the most common conversion

EST to PST is a 3 hour difference: Pacific time is 3 hours behind Eastern time. So 2:30 PM in New York is 11:30 AM in Los Angeles. The gap stays 3 hours all year because both zones change their clocks on the same days. To convert PST to EST, add 3 hours. For CST to EST add 1 hour, and for MST to EST add 2 hours.

Time zone converter meeting planner

The time zone converter meeting planner lists each hour of the first city’s day with the matching time in three other cities. Rows that are inside 8 AM to 6 PM everywhere are marked, and the overlap line gives the window. For New York, London, Dubai and Los Angeles on October 8, 2026 the answer is none; for London, Mumbai, Dubai and New York the overlap is 1:00 PM to 2:00 PM.

The table shows how many hours two cities share on a typical day in July and in January, using the same 8 AM to 6 PM rule. Use it to see which pairs are easy to schedule.

Tips for scheduling across time zones

• Rotate unfriendly times so one city does not always take the early or late slot.
• Write the time with the zone and the UTC offset in the invitation, for example 14:00 UTC.
• Check the date, not just the hour: Sydney and Tokyo are often a day ahead of New York.
• Look at mismatch weeks in March, October and November, when a regular meeting can move by an hour.
• Use Copy link to send the exact conversion to your team.

DST changes: skipped and repeated times

Two clock times each year are special. When clocks go forward, an hour does not exist: 2:30 AM on March 8, 2026 never happened in New York, because 2:00 AM jumped to 3:00 AM. The converter tells you and moves the time forward to 3:30 AM EDT, which is 7:30 AM in London.

When clocks go back, an hour happens twice: 1:30 AM on November 1, 2026 occurs once in daylight time and once in standard time. The converter uses the first one and says so. If you need the second, convert an hour later.

Related calculators and printables

• Time calculator to add and subtract hours and minutes.
• Work hours calculator for shifts, breaks and pay.
• Date calculator to add or subtract days from a date.
• Days until calculator for countdowns to holidays and events.
• Printable calendars for scheduling meetings and trips.
• All calculators

Sources and further reading

• 15 U.S.C. 260a: daylight saving time (US law) for the US start and end dates.
• GOV.UK: when do the clocks change for UK dates and times.
• IANA time zone database for the data browsers use, and NIST: daylight saving time.
• Government of British Columbia: end of time changes and Alberta Time.

Last updated: October 2026.