time zone

C185
concept

A time zone is a geographically defined region that observes a uniform standard time, typically offset from Coordinated Universal Time (UTC), to synchronize clocks within that area.

All labels observed (16)

Label Occurrences
time zone canonical 253
IANA time zone identifier 65
time standard 30

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: time zone
Generated description
A time zone is a geographically defined region that observes a uniform standard time, typically offset from Coordinated Universal Time (UTC), to synchronize clocks within that area.

Instances (297)

Instance Via concept surface
Mountain Time Zone
Eastern European Summer Time
PKT
IDT
Western European Time
BJT time standard
Hong Kong Time
MSK time zone abbreviation
IRDT
Iran Daylight Time
Western European Summer Time
Yekaterinburg Time
Europe/Amsterdam
Tahiti Time
Argentina Time
International Atomic Time time standard
Japan Standard Time
Myanmar Standard Time
Afghanistan Time
Australian Eastern Standard Time
Western Indonesian Time
Hawaii–Aleutian Standard Time
Chuuk Time
Alaska Time Zone
Alaska Daylight Time
Atlantic Time Zone
Yukon Time Zone
Vanuatu Time
Norfolk Island Time (standard)
America/Vancouver IANA time zone identifier
Alaska Time
Bougainville Standard Time
Mauritius Time
Africa/Bujumbura IANA time zone identifier
Africa/Blantyre IANA time zone identifier
AMT
America/St_Johns IANA time zone identifier
America/Mazatlan IANA time zone identifier
ADT
Europe/Rome Olson time zone ID
Eastern Time Zone
PET
EET
Krasnoyarsk Time (standard)
surface form: Krasnoyarsk Time
Christmas Island Time
Asia/Aqtobe
PWT
Pacific/Palau IANA time zone identifier
TLT
Asia/Chita IANA time zone identifier