世界时区缩写代码大全词典 (EST, PST, CST, CET, GMT, JST)

收录全球所有时区缩写代号、标准时与夏令时代码、对应UTC时差偏移以及同名缩写的消除歧义对照。

字母表排序的世界时区代码速查表

Abbr Full Name UTC Offset Region
UTC Coordinated Universal Time UTC+0:00 Global Standard
GMT Greenwich Mean Time UTC+0:00 UK, West Africa
BST British Summer Time (DST) UTC+1:00 United Kingdom
CET Central European Time UTC+1:00 Germany, France, Italy, Spain
CEST Central European Summer Time (DST) UTC+2:00 Central Europe
EET Eastern European Time UTC+2:00 Greece, Finland, Romania
EST Eastern Standard Time UTC-5:00 US & Canada East Coast
EDT Eastern Daylight Time (DST) UTC-4:00 US & Canada East Coast
CST Central Standard Time UTC-6:00 US Midwest, Mexico
CDT Central Daylight Time (DST) UTC-5:00 US Midwest
MST Mountain Standard Time UTC-7:00 US Mountain, Arizona
MDT Mountain Daylight Time (DST) UTC-6:00 US Mountain
PST Pacific Standard Time UTC-8:00 US West Coast, California
PDT Pacific Daylight Time (DST) UTC-7:00 US West Coast
AKST Alaska Standard Time UTC-9:00 Alaska
HST Hawaii Standard Time UTC-10:00 Hawaii
IST India Standard Time UTC+5:30 India, Sri Lanka
NPT Nepal Time UTC+5:45 Nepal
JST Japan Standard Time UTC+9:00 Japan
KST Korea Standard Time UTC+9:00 South Korea
CST China Standard Time UTC+8:00 China, Taiwan, Hong Kong
SGT Singapore Time UTC+8:00 Singapore
AEST Australian Eastern Standard Time UTC+10:00 Sydney, Melbourne, Brisbane
AEDT Australian Eastern Daylight Time (DST) UTC+11:00 Sydney, Melbourne
NZST New Zealand Standard Time UTC+12:00 New Zealand
NZDT New Zealand Daylight Time (DST) UTC+13:00 New Zealand

极易混淆的重名时区缩写代码与消歧对照说明

Because time zone abbreviations are not universally unique standard identifiers, several three-letter acronyms are shared by multiple regions on opposite sides of the planet. Schedulers must exercise caution when using the following abbreviations:

  • CST: Can designate Central Standard Time in North America (UTC-6:00), China Standard Time in East Asia (UTC+8:00), or Cuba Standard Time (UTC-5:00)—representing a massive 14-hour difference between Chicago and Beijing.
  • BST: Can refer to British Summer Time in the United Kingdom (UTC+1:00) or Bangladesh Standard Time in South Asia (UTC+6:00)—a 5-hour difference.
  • IST: Can represent India Standard Time (UTC+5:30), Israel Standard Time (UTC+2:00), or Irish Standard Time (UTC+1:00).
  • AST: Can refer to Atlantic Standard Time in the Americas (UTC-4:00) or Arabia Standard Time in the Middle East (UTC+3:00)—a 7-hour discrepancy.

Best Practice: When coordinating cross-border meetings, always pair the acronym with its numerical UTC offset (e.g., CST (UTC-6)) or generate an automatic local-time invite using our Shareable Event Link Tool.

立即换算任意时区时间

Use our interactive converter to calculate time across any of these abbreviations instantly, or view them side-by-side on our live world clock.

Launch Time Zone Converter → Live World Clocks → Time Zones Directory →
📖 Abbreviations Guide

常见问题解答 (FAQ)

Essential answers on global time zone acronyms, duplicate abbreviations, and disambiguation.

什么是时区英文缩写?

时区英文缩写是由3到5个英文字母组成的简短代码(如 EST、PST、CET 或 JST),用于表示特定的法定民用时区及其对应的时差偏移。

EST 和 EDT 分别代表什么?

EST 代表北美东部标准时间(UTC-5:00),在冬季使用;EDT 代表北美东部夏令时间(UTC-4:00),在春夏季时钟调快一小时后使用。

PST 和 PDT 分别代表什么?

PST 代表北美太平洋标准时间(UTC-8:00),在冬季使用;PDT 代表太平洋夏令时间(UTC-7:00),在春夏季实行夏令时期间使用。

GMT 与 UTC 的差别在哪里?

UTC 是由国际原子钟维系的高精密度科学基准标准;GMT 则指以格林尼治天文台为原点的历史性天文民用时区。技术与航空领域统一使用 UTC,而欧洲与非洲民用作息常习惯称呼 GMT。

为什么同一个时区缩写可能代表不同的地区?

时区英文缩写缺乏全球统一的排他性标准。例如“CST”既可以指北美中部标准时间(UTC-6:00),也可以指中国标准时间(UTC+8:00),还可以指古巴标准时间(UTC-5:00)。

在转换时间时,应该输入具体城市还是时区缩写?

使用具体城市名称远比使用缩写更准确可靠。城市名称能自动消除多义缩写的冲突,并精确匹配该地区现行生效的夏令时起止规则。

标准时间(Standard Time)与夏令时间(Daylight Time)有什么区别?

标准时间是某个地区的基准法定民用时间(如 EST 或 PST)。夏令时间则是为了延长傍晚日照而在春夏季临时调快一小时的时间(如 EDT 或 PDT)。