tzdata rule group
NT_YK
Historical rule context · 7 represented zones
A rule group describes recurring clock changes. It is not itself a place or an IANA time-zone identifier.
- First rule
- 1918
- Last rule
- 2006
- Rule entries
- 10
- Source files
- northamerica
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.
War
Peace
Where it appears
Zones using NT_YK
Only historically distinct canonical zones from this atlas are listed.
CanadaOriginal rule fields
Recorded rule entries
Structured directly from tzdata’s Rule lines.
| From | To | Type | In | On | At | Save |
|---|---|---|---|---|---|---|
| 1918 | only | - | Apr | 14 | 2:00 | 1:00 |
| 1918 | only | - | Oct | 27 | 2:00 | 0 |
| 1919 | only | - | May | 25 | 2:00 | 1:00 |
| 1919 | only | - | Nov | 1 | 0:00 | 0 |
| 1942 | only | - | Feb | 9 | 2:00 | 1:00 |
| 1945 | only | - | Aug | 14 | 23:00u | 1:00 |
| 1945 | only | - | Sep | 30 | 2:00 | 0 |
| 1972 | 1986 | - | Apr | lastSun | 2:00 | 1:00 |
| 1972 | 2006 | - | Oct | lastSun | 2:00 | 0 |
| 1987 | 2006 | - | Apr | Sun>=1 | 2:00 | 1:00 |