---
title: "Daylight Saving Time Change Dates by Zone | Friendly Orbit"
description: "When do the clocks change? See the next daylight saving time dates for any place, how far they move, and the weeks when the gap between two places shifts."
url: https://friendlyorbit.cyou/dst-change-dates/
---

# Daylight saving time change dates

See exactly when the clocks go forward or back in every place you care about, by how much, and the awkward weeks when the gap between two places is an hour off because only one of them has changed.

- London
- New York
- Sydney
- Mumbai

### London

United Kingdom · Greenwich Mean Time · UTC+0 now

1. **Sun 28 Mar 2027** in 149 days
   At 01:00 clocks go forward 1 hour to 02:00
   GMT → BST, UTC+0 → UTC+1 · the night is 1 hour shorter

### New York

United States · Eastern Daylight Time · UTC−4 now

1. **Sun 1 Nov 2026** in 2 days
   At 02:00 clocks go back 1 hour to 01:00
   EDT → EST, UTC−4 → UTC−5 · 1 hour of the night happens twice
2. **Sun 14 Mar 2027** in 135 days
   At 02:00 clocks go forward 1 hour to 03:00
   EST → EDT, UTC−5 → UTC−4 · the night is 1 hour shorter

### Sydney

Australia · Australian Eastern Daylight Time · UTC+11 now

1. **Sun 4 Apr 2027** in 156 days
   At 03:00 clocks go back 1 hour to 02:00
   AEDT → AEST, UTC+11 → UTC+10 · 1 hour of the night happens twice
2. **Sun 3 Oct 2027** in 338 days
   At 02:00 clocks go forward 1 hour to 03:00
   AEST → AEDT, UTC+10 → UTC+11 · the night is 1 hour shorter

### Mumbai

India · India Standard Time · UTC+5:30 now

No clock changes in the next 12 months: UTC+5:30 all the way through.

## How the gaps shift

Compared with London, the first place on your list, in the next 12 months.

- **New York** is 5 h behind of London most of the time, but:
  - 4 h behind until 1 Nov
  - 4 h behind from 14 Mar to 28 Mar
- **Sydney** is 9 h ahead of London most of the time, but:
  - 11 h ahead until 28 Mar
  - 10 h ahead from 28 Mar to 3 Apr
  - 10 h ahead from 2 Oct onwards
- **Mumbai** is 4 h 30 min ahead of London most of the time, but:
  - 5 h 30 min ahead until 28 Mar

## How the dates are found

There is no list of dates inside this page. Your browser carries the IANA time zone database, and the page asks it for each place's UTC offset one day at a time across the period. Where the offset differs from one day to the next, it halves the gap again and again until it has the exact second the clocks change. That is why it also finds unusual changes, such as Lord Howe Island moving by 30 minutes or Morocco changing around Ramadan.

## The rules in brief

Most of the United States changes at 02:00 local time on the second Sunday of March and the first Sunday of November. The European Union, and the United Kingdom with it, changes on the last Sundays of March and October, all at the same instant. Much of the southern hemisphere does the opposite, moving forward in September or October. Many countries, including India, Japan and China, do not change at all. Because the dates differ, the gap between two places can be an hour off for a few weeks each spring and autumn; the list above shows exactly when.

## Sources

- United States Code, [15 U.S.C. § 260a: Advancement of time or changeover dates](https://www.law.cornell.edu/uscode/text/15/260a) (Legal Information Institute).
- NIST. [Daylight Saving Time (DST)](https://www.nist.gov/pml/time-and-frequency-division/popular-links/daylight-saving-time-dst).
- European Commission. [Summertime](https://transport.ec.europa.eu/transport-themes/summertime_en) (Directive 2000/84/EC).
- Internet Assigned Numbers Authority. [Time Zone Database](https://www.iana.org/time-zones).

## Questions

**Why does my phone change at the right moment but this list says a different date?**

Both use time zone data, but a device that has not been updated for a while can hold old rules. Update your browser and system; if they still differ, the government may have changed the rule very recently.

**What do the calendar reminders contain?**

An all-day event on the local date of each change, titled with the place and what happens, so you can warn friends or rearrange a call. They import into most calendar apps.

**Is it summer time or winter time that is "real"?**

Neither is more correct. Standard time is the zone's base offset; daylight saving time adds to it, usually one hour, for part of the year.