daylight saving time
C3001
concept
Daylight saving time is a system of adjusting clocks forward or backward, typically by one hour, to extend evening daylight during warmer months and revert to standard time in colder months.
All labels observed (3)
| Label | Occurrences |
|---|---|
| daylight saving time canonical | 27 |
| daylight saving time system | 1 |
| seasonal clock adjustment system | 1 |
Description generation (CDg)
The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.
Instruction
generate a one-sentence description for a given conceptual class. # Response Format Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: daylight saving time
Generated description
Daylight saving time is a system of adjusting clocks forward or backward, typically by one hour, to extend evening daylight during warmer months and revert to standard time in colder months.
Instances (29)
| Instance | Via concept surface |
|---|---|
| Mountain Daylight Time | — |
| Cuba Daylight Time | — |
| New Zealand Daylight Time | — |
|
IRST
surface form:
Iran Daylight Time
|
— |
| Eastern European Summer Time | — |
| IDT | — |
| IRDT | — |
| Iran Daylight Time | — |
| Western European Summer Time | — |
| Alaska Daylight Time | — |
| ADT | — |
| Irish Standard Time | — |
| Easter Island Summer Time | — |
| Israel Daylight Time | — |
| CLST | — |
| FKST | — |
| Australian Eastern Daylight Time | — |
| Daylight saving time (United States) | seasonal clock adjustment system |
| BST | — |
| CEST | — |
| Australian Central Daylight Time | — |
| Southern Hemisphere daylight saving times | daylight saving time system |
| ACDT | — |
| Paraguay Summer Time | — |
| Central European Summer Time | — |
| British Summer Time | — |
|
Australian time zones
surface form:
Australian Eastern Daylight Time
|
— |
| CDT | — |
| AKDT | — |