Historically distinct IANA time zone

Europe/Isle_of_Man

Canonical IANA identifier · Data release 2026c

Local time now +01:00 BST · current offset

Countries: Isle of Man
GPS reference: 54.15° N, 4.47° W
Data source: IANA backzone
Aliases: None
Rule groups: GB-Eire, EU

Geographic context

Where this clock belongs

The map marks the IANA reference location and associated country, not a time-zone boundary.

World location

Regional context

GPS reference: 54.15° N, 4.47° W. Associated countries: IM.

The Wikipedia link provides additional context; it is not evidence for a historical claim. Transition data comes from the IANA source file.

Notes from the time database

The story behind the clock

These source notes describe a period or rule. They do not, by themselves, establish a causal claim for a particular clock change.

1916–1995

Rule context

Summer Time Act, 1916

1996–2026

Rule context

The following rules are for the European Union and for its predecessor organization, the European Communities. For brevity they are called "EU rules" elsewhere in this file.

Original IANA source file: europe.

Civil-time record

Recorded changes over time

From 1847 to 2027 · 222 recorded transitions

Show period

Recurring daylight-saving changes are grouped separately when JavaScript is available.

Notable changes

One-off changes and transitions outside the recurring seasonal rhythm.

1847-12-01 00:01+00:00 · GMTStandard time applies
1916-05-21 03:00+01:00 · BSTDaylight saving time begins
1916-10-01 02:00+00:00 · GMTStandard time applies
1917-04-08 03:00+01:00 · BSTDaylight saving time begins
1917-09-17 02:00+00:00 · GMTStandard time applies
1918-03-24 03:00+01:00 · BSTDaylight saving time begins

Browse every recorded transition

Filter the table

Local time after transition	Offset after	Abbreviation	Rule
1847-12-01 00:01	+00:00	GMT	Standard time
1916-05-21 03:00	+01:00	BST	Daylight saving time
1916-10-01 02:00	+00:00	GMT	Standard time
1917-04-08 03:00	+01:00	BST	Daylight saving time
1917-09-17 02:00	+00:00	GMT	Standard time
1918-03-24 03:00	+01:00	BST	Daylight saving time
1918-09-30 02:00	+00:00	GMT	Standard time
1919-03-30 03:00	+01:00	BST	Daylight saving time
1919-09-29 02:00	+00:00	GMT	Standard time
1920-03-28 03:00	+01:00	BST	Daylight saving time
1920-10-25 02:00	+00:00	GMT	Standard time
1921-04-03 03:00	+01:00	BST	Daylight saving time
1921-10-03 02:00	+00:00	GMT	Standard time
1922-03-26 03:00	+01:00	BST	Daylight saving time
1922-10-08 02:00	+00:00	GMT	Standard time
1923-04-22 03:00	+01:00	BST	Daylight saving time
1923-09-16 02:00	+00:00	GMT	Standard time
1924-04-13 03:00	+01:00	BST	Daylight saving time
1924-09-21 02:00	+00:00	GMT	Standard time
1925-04-19 03:00	+01:00	BST	Daylight saving time
1925-10-04 02:00	+00:00	GMT	Standard time
1926-04-18 03:00	+01:00	BST	Daylight saving time
1926-10-03 02:00	+00:00	GMT	Standard time
1927-04-10 03:00	+01:00	BST	Daylight saving time
1927-10-02 02:00	+00:00	GMT	Standard time
1928-04-22 03:00	+01:00	BST	Daylight saving time
1928-10-07 02:00	+00:00	GMT	Standard time
1929-04-21 03:00	+01:00	BST	Daylight saving time
1929-10-06 02:00	+00:00	GMT	Standard time
1930-04-13 03:00	+01:00	BST	Daylight saving time
1930-10-05 02:00	+00:00	GMT	Standard time
1931-04-19 03:00	+01:00	BST	Daylight saving time
1931-10-04 02:00	+00:00	GMT	Standard time
1932-04-17 03:00	+01:00	BST	Daylight saving time
1932-10-02 02:00	+00:00	GMT	Standard time
1933-04-09 03:00	+01:00	BST	Daylight saving time
1933-10-08 02:00	+00:00	GMT	Standard time
1934-04-22 03:00	+01:00	BST	Daylight saving time
1934-10-07 02:00	+00:00	GMT	Standard time
1935-04-14 03:00	+01:00	BST	Daylight saving time
1935-10-06 02:00	+00:00	GMT	Standard time
1936-04-19 03:00	+01:00	BST	Daylight saving time
1936-10-04 02:00	+00:00	GMT	Standard time
1937-04-18 03:00	+01:00	BST	Daylight saving time
1937-10-03 02:00	+00:00	GMT	Standard time
1938-04-10 03:00	+01:00	BST	Daylight saving time
1938-10-02 02:00	+00:00	GMT	Standard time
1939-04-16 03:00	+01:00	BST	Daylight saving time
1939-11-19 02:00	+00:00	GMT	Standard time
1940-02-25 03:00	+01:00	BST	Daylight saving time
1941-05-04 03:00	+02:00	BDST	Daylight saving time
1941-08-10 02:00	+01:00	BST	Daylight saving time
1942-04-05 03:00	+02:00	BDST	Daylight saving time
1942-08-09 02:00	+01:00	BST	Daylight saving time
1943-04-04 03:00	+02:00	BDST	Daylight saving time
1943-08-15 02:00	+01:00	BST	Daylight saving time
1944-04-02 03:00	+02:00	BDST	Daylight saving time
1944-09-17 02:00	+01:00	BST	Daylight saving time
1945-04-02 03:00	+02:00	BDST	Daylight saving time
1945-07-15 02:00	+01:00	BST	Daylight saving time
1945-10-07 02:00	+00:00	GMT	Standard time
1946-04-14 03:00	+01:00	BST	Daylight saving time
1946-10-06 02:00	+00:00	GMT	Standard time
1947-03-16 03:00	+01:00	BST	Daylight saving time
1947-04-13 03:00	+02:00	BDST	Daylight saving time
1947-08-10 02:00	+01:00	BST	Daylight saving time
1947-11-02 02:00	+00:00	GMT	Standard time
1948-03-14 03:00	+01:00	BST	Daylight saving time
1948-10-31 02:00	+00:00	GMT	Standard time
1949-04-03 03:00	+01:00	BST	Daylight saving time
1949-10-30 02:00	+00:00	GMT	Standard time
1950-04-16 03:00	+01:00	BST	Daylight saving time
1950-10-22 02:00	+00:00	GMT	Standard time
1951-04-15 03:00	+01:00	BST	Daylight saving time
1951-10-21 02:00	+00:00	GMT	Standard time
1952-04-20 03:00	+01:00	BST	Daylight saving time
1952-10-26 02:00	+00:00	GMT	Standard time
1953-04-19 03:00	+01:00	BST	Daylight saving time
1953-10-04 02:00	+00:00	GMT	Standard time
1954-04-11 03:00	+01:00	BST	Daylight saving time
1954-10-03 02:00	+00:00	GMT	Standard time
1955-04-17 03:00	+01:00	BST	Daylight saving time
1955-10-02 02:00	+00:00	GMT	Standard time
1956-04-22 03:00	+01:00	BST	Daylight saving time
1956-10-07 02:00	+00:00	GMT	Standard time
1957-04-14 03:00	+01:00	BST	Daylight saving time
1957-10-06 02:00	+00:00	GMT	Standard time
1958-04-20 03:00	+01:00	BST	Daylight saving time
1958-10-05 02:00	+00:00	GMT	Standard time
1959-04-19 03:00	+01:00	BST	Daylight saving time
1959-10-04 02:00	+00:00	GMT	Standard time
1960-04-10 03:00	+01:00	BST	Daylight saving time
1960-10-02 02:00	+00:00	GMT	Standard time
1961-03-26 03:00	+01:00	BST	Daylight saving time
1961-10-29 02:00	+00:00	GMT	Standard time
1962-03-25 03:00	+01:00	BST	Daylight saving time
1962-10-28 02:00	+00:00	GMT	Standard time
1963-03-31 03:00	+01:00	BST	Daylight saving time
1963-10-27 02:00	+00:00	GMT	Standard time
1964-03-22 03:00	+01:00	BST	Daylight saving time
1964-10-25 02:00	+00:00	GMT	Standard time
1965-03-21 03:00	+01:00	BST	Daylight saving time
1965-10-24 02:00	+00:00	GMT	Standard time
1966-03-20 03:00	+01:00	BST	Daylight saving time
1966-10-23 02:00	+00:00	GMT	Standard time
1967-03-19 03:00	+01:00	BST	Daylight saving time
1967-10-29 02:00	+00:00	GMT	Standard time
1968-02-18 03:00	+01:00	BST	Daylight saving time
1968-10-27 00:00	+01:00	BST	Standard time
1971-10-31 02:00	+00:00	GMT	Standard time
1972-03-19 03:00	+01:00	BST	Daylight saving time
1972-10-29 02:00	+00:00	GMT	Standard time
1973-03-18 03:00	+01:00	BST	Daylight saving time
1973-10-28 02:00	+00:00	GMT	Standard time
1974-03-17 03:00	+01:00	BST	Daylight saving time
1974-10-27 02:00	+00:00	GMT	Standard time
1975-03-16 03:00	+01:00	BST	Daylight saving time
1975-10-26 02:00	+00:00	GMT	Standard time
1976-03-21 03:00	+01:00	BST	Daylight saving time
1976-10-24 02:00	+00:00	GMT	Standard time
1977-03-20 03:00	+01:00	BST	Daylight saving time
1977-10-23 02:00	+00:00	GMT	Standard time
1978-03-19 03:00	+01:00	BST	Daylight saving time
1978-10-29 02:00	+00:00	GMT	Standard time
1979-03-18 03:00	+01:00	BST	Daylight saving time
1979-10-28 02:00	+00:00	GMT	Standard time
1980-03-16 03:00	+01:00	BST	Daylight saving time
1980-10-26 02:00	+00:00	GMT	Standard time
1981-03-29 02:00	+01:00	BST	Daylight saving time
1981-10-25 01:00	+00:00	GMT	Standard time
1982-03-28 02:00	+01:00	BST	Daylight saving time
1982-10-24 01:00	+00:00	GMT	Standard time
1983-03-27 02:00	+01:00	BST	Daylight saving time
1983-10-23 01:00	+00:00	GMT	Standard time
1984-03-25 02:00	+01:00	BST	Daylight saving time
1984-10-28 01:00	+00:00	GMT	Standard time
1985-03-31 02:00	+01:00	BST	Daylight saving time
1985-10-27 01:00	+00:00	GMT	Standard time
1986-03-30 02:00	+01:00	BST	Daylight saving time
1986-10-26 01:00	+00:00	GMT	Standard time
1987-03-29 02:00	+01:00	BST	Daylight saving time
1987-10-25 01:00	+00:00	GMT	Standard time
1988-03-27 02:00	+01:00	BST	Daylight saving time
1988-10-23 01:00	+00:00	GMT	Standard time
1989-03-26 02:00	+01:00	BST	Daylight saving time
1989-10-29 01:00	+00:00	GMT	Standard time
1990-03-25 02:00	+01:00	BST	Daylight saving time
1990-10-28 01:00	+00:00	GMT	Standard time
1991-03-31 02:00	+01:00	BST	Daylight saving time
1991-10-27 01:00	+00:00	GMT	Standard time
1992-03-29 02:00	+01:00	BST	Daylight saving time
1992-10-25 01:00	+00:00	GMT	Standard time
1993-03-28 02:00	+01:00	BST	Daylight saving time
1993-10-24 01:00	+00:00	GMT	Standard time
1994-03-27 02:00	+01:00	BST	Daylight saving time
1994-10-23 01:00	+00:00	GMT	Standard time
1995-03-26 02:00	+01:00	BST	Daylight saving time
1995-10-22 01:00	+00:00	GMT	Standard time
1996-03-31 02:00	+01:00	BST	Daylight saving time
1996-10-27 01:00	+00:00	GMT	Standard time
1997-03-30 02:00	+01:00	BST	Daylight saving time
1997-10-26 01:00	+00:00	GMT	Standard time
1998-03-29 02:00	+01:00	BST	Daylight saving time
1998-10-25 01:00	+00:00	GMT	Standard time
1999-03-28 02:00	+01:00	BST	Daylight saving time
1999-10-31 01:00	+00:00	GMT	Standard time
2000-03-26 02:00	+01:00	BST	Daylight saving time
2000-10-29 01:00	+00:00	GMT	Standard time
2001-03-25 02:00	+01:00	BST	Daylight saving time
2001-10-28 01:00	+00:00	GMT	Standard time
2002-03-31 02:00	+01:00	BST	Daylight saving time
2002-10-27 01:00	+00:00	GMT	Standard time
2003-03-30 02:00	+01:00	BST	Daylight saving time
2003-10-26 01:00	+00:00	GMT	Standard time
2004-03-28 02:00	+01:00	BST	Daylight saving time
2004-10-31 01:00	+00:00	GMT	Standard time
2005-03-27 02:00	+01:00	BST	Daylight saving time
2005-10-30 01:00	+00:00	GMT	Standard time
2006-03-26 02:00	+01:00	BST	Daylight saving time
2006-10-29 01:00	+00:00	GMT	Standard time
2007-03-25 02:00	+01:00	BST	Daylight saving time
2007-10-28 01:00	+00:00	GMT	Standard time
2008-03-30 02:00	+01:00	BST	Daylight saving time
2008-10-26 01:00	+00:00	GMT	Standard time
2009-03-29 02:00	+01:00	BST	Daylight saving time
2009-10-25 01:00	+00:00	GMT	Standard time
2010-03-28 02:00	+01:00	BST	Daylight saving time
2010-10-31 01:00	+00:00	GMT	Standard time
2011-03-27 02:00	+01:00	BST	Daylight saving time
2011-10-30 01:00	+00:00	GMT	Standard time
2012-03-25 02:00	+01:00	BST	Daylight saving time
2012-10-28 01:00	+00:00	GMT	Standard time
2013-03-31 02:00	+01:00	BST	Daylight saving time
2013-10-27 01:00	+00:00	GMT	Standard time
2014-03-30 02:00	+01:00	BST	Daylight saving time
2014-10-26 01:00	+00:00	GMT	Standard time
2015-03-29 02:00	+01:00	BST	Daylight saving time
2015-10-25 01:00	+00:00	GMT	Standard time
2016-03-27 02:00	+01:00	BST	Daylight saving time
2016-10-30 01:00	+00:00	GMT	Standard time
2017-03-26 02:00	+01:00	BST	Daylight saving time
2017-10-29 01:00	+00:00	GMT	Standard time
2018-03-25 02:00	+01:00	BST	Daylight saving time
2018-10-28 01:00	+00:00	GMT	Standard time
2019-03-31 02:00	+01:00	BST	Daylight saving time
2019-10-27 01:00	+00:00	GMT	Standard time
2020-03-29 02:00	+01:00	BST	Daylight saving time
2020-10-25 01:00	+00:00	GMT	Standard time
2021-03-28 02:00	+01:00	BST	Daylight saving time
2021-10-31 01:00	+00:00	GMT	Standard time
2022-03-27 02:00	+01:00	BST	Daylight saving time
2022-10-30 01:00	+00:00	GMT	Standard time
2023-03-26 02:00	+01:00	BST	Daylight saving time
2023-10-29 01:00	+00:00	GMT	Standard time
2024-03-31 02:00	+01:00	BST	Daylight saving time
2024-10-27 01:00	+00:00	GMT	Standard time
2025-03-30 02:00	+01:00	BST	Daylight saving time
2025-10-26 01:00	+00:00	GMT	Standard time
2026-03-29 02:00	+01:00	BST	Daylight saving time
2026-10-25 01:00	+00:00	GMT	Standard time
2027-03-28 02:00	+01:00	BST	Daylight saving time
2027-10-31 01:00	+00:00	GMT	Standard time