Historically distinct IANA time zone

Asia/Hovd

Canonical IANA identifier · Data release 2026c

Local time now +07:00 +07 · current offset

Countries: Mongolia
GPS reference: 48.02° N, 91.65° E
Data source: IANA asia
Aliases: None
Rule groups: Mongol

Bayan-Olgii, Hovd, Uvs

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: 48.02° N, 91.65° E. Associated countries: MN.

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.

1999–2016

Rule context

IATA SSIM (1999-09) says Mongolia no longer observes DST.

Original IANA source file: asia.

Civil-time record

Recorded changes over time

From 1905 to 2016 · 50 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.

1905-07-31 23:53+06:00 · +06Standard time applies
1978-01-01 01:00+07:00 · +07Standard time applies
1983-04-01 01:00+08:00 · +08Daylight saving time begins
1983-09-30 23:00+07:00 · +07Standard time applies
1984-04-01 01:00+08:00 · +08Daylight saving time begins
1984-09-29 23:00+07:00 · +07Standard time applies

Browse every recorded transition

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Local time after transition	Offset after	Abbreviation	Rule
1905-07-31 23:53	+06:00	+06	Standard time
1978-01-01 01:00	+07:00	+07	Standard time
1983-04-01 01:00	+08:00	+08	Daylight saving time
1983-09-30 23:00	+07:00	+07	Standard time
1984-04-01 01:00	+08:00	+08	Daylight saving time
1984-09-29 23:00	+07:00	+07	Standard time
1985-03-31 01:00	+08:00	+08	Daylight saving time
1985-09-28 23:00	+07:00	+07	Standard time
1986-03-30 01:00	+08:00	+08	Daylight saving time
1986-09-27 23:00	+07:00	+07	Standard time
1987-03-29 01:00	+08:00	+08	Daylight saving time
1987-09-26 23:00	+07:00	+07	Standard time
1988-03-27 01:00	+08:00	+08	Daylight saving time
1988-09-24 23:00	+07:00	+07	Standard time
1989-03-26 01:00	+08:00	+08	Daylight saving time
1989-09-23 23:00	+07:00	+07	Standard time
1990-03-25 01:00	+08:00	+08	Daylight saving time
1990-09-29 23:00	+07:00	+07	Standard time
1991-03-31 01:00	+08:00	+08	Daylight saving time
1991-09-28 23:00	+07:00	+07	Standard time
1992-03-29 01:00	+08:00	+08	Daylight saving time
1992-09-26 23:00	+07:00	+07	Standard time
1993-03-28 01:00	+08:00	+08	Daylight saving time
1993-09-25 23:00	+07:00	+07	Standard time
1994-03-27 01:00	+08:00	+08	Daylight saving time
1994-09-24 23:00	+07:00	+07	Standard time
1995-03-26 01:00	+08:00	+08	Daylight saving time
1995-09-23 23:00	+07:00	+07	Standard time
1996-03-31 01:00	+08:00	+08	Daylight saving time
1996-09-28 23:00	+07:00	+07	Standard time
1997-03-30 01:00	+08:00	+08	Daylight saving time
1997-09-27 23:00	+07:00	+07	Standard time
1998-03-29 01:00	+08:00	+08	Daylight saving time
1998-09-26 23:00	+07:00	+07	Standard time
2001-04-28 03:00	+08:00	+08	Daylight saving time
2001-09-29 01:00	+07:00	+07	Standard time
2002-03-30 03:00	+08:00	+08	Daylight saving time
2002-09-28 01:00	+07:00	+07	Standard time
2003-03-29 03:00	+08:00	+08	Daylight saving time
2003-09-27 01:00	+07:00	+07	Standard time
2004-03-27 03:00	+08:00	+08	Daylight saving time
2004-09-25 01:00	+07:00	+07	Standard time
2005-03-26 03:00	+08:00	+08	Daylight saving time
2005-09-24 01:00	+07:00	+07	Standard time
2006-03-25 03:00	+08:00	+08	Daylight saving time
2006-09-30 01:00	+07:00	+07	Standard time
2015-03-28 03:00	+08:00	+08	Daylight saving time
2015-09-25 23:00	+07:00	+07	Standard time
2016-03-26 03:00	+08:00	+08	Daylight saving time
2016-09-23 23:00	+07:00	+07	Standard time

Where this clock belongs

The story behind the clock

Same clock today, different past

Recorded changes over time

Notable changes