tzdata rule group
AN
Active or recent rule group · 3 represented zones
A rule group describes recurring clock changes. It is not itself a place or an IANA time-zone identifier.
- First rule
- 1971
- Last rule
- 2026 or later
- Rule entries
- 16
- Source files
- australasia
Notes from the time database
Context for this rule
These source notes are preserved from tzdata. They help explain a rule’s period, without adding claims beyond the source.
New South Wales
Where it appears
Zones using AN
Only historically distinct canonical zones from this atlas are listed.
Ashmore and Cartier Islands
Norfolk IslandOriginal rule fields
Recorded rule entries
Structured directly from tzdata’s Rule lines.
| From | To | Type | In | On | At | Save |
|---|---|---|---|---|---|---|
| 1971 | 1985 | - | Oct | lastSun | 2:00s | 1:00 |
| 1972 | only | - | Feb | 27 | 2:00s | 0 |
| 1973 | 1981 | - | Mar | Sun>=1 | 2:00s | 0 |
| 1982 | only | - | Apr | Sun>=1 | 2:00s | 0 |
| 1983 | 1985 | - | Mar | Sun>=1 | 2:00s | 0 |
| 1986 | 1989 | - | Mar | Sun>=15 | 2:00s | 0 |
| 1986 | only | - | Oct | 19 | 2:00s | 1:00 |
| 1987 | 1999 | - | Oct | lastSun | 2:00s | 1:00 |
| 1990 | 1995 | - | Mar | Sun>=1 | 2:00s | 0 |
| 1996 | 2005 | - | Mar | lastSun | 2:00s | 0 |
| 2000 | only | - | Aug | lastSun | 2:00s | 1:00 |
| 2001 | 2007 | - | Oct | lastSun | 2:00s | 1:00 |
| 2006 | only | - | Apr | Sun>=1 | 2:00s | 0 |
| 2007 | only | - | Mar | lastSun | 2:00s | 0 |
| 2008 | max | - | Apr | Sun>=1 | 2:00s | 0 |
| 2008 | max | - | Oct | Sun>=1 | 2:00s | 1:00 |