Menu

Asia/Taipei time zone

8:56PMCST

CSTUTC+8+13 h vs New York (you)

No transitions: Asia/Taipei stays on CST (UTC+8).

About Asia/Taipei

Asia/Taipei is the IANA time zone for Taiwan. It currently keeps China Standard Time (CST, UTC+8) all year.

Its principal location is Taipei at 25.05° N, 121.50° E.

Abbreviations in use: CST. Offset page: UTC+8.

Rule for future years (POSIX TZ string)

CST-8

The standard time is called CST and is UTC+8. POSIX writes the offset with the opposite sign (west of Greenwich is positive), which is why the string says "-8". There is no daylight saving rule: the zone stays on this offset for every year after the end of its explicit transitions. Software that has no full tzdata copy, such as many embedded devices, can use this string directly as the TZ environment variable.

History of Asia/Taipei since 1970

The record starts with local mean time (UTC+8:06), which ended on January 1, 1896. The first daylight saving time in the record is in 1946.

YearsClocksAbbreviations
1970–1973UTC+8 all yearCST
1974–1975UTC+8 in winter, UTC+9 in summerCST, CDT
1976–1978UTC+8 all yearCST
1979UTC+8 in winter, UTC+9 in summerCST, CDT
1980 onwardUTC+8 all yearCST

Before 1970

35 offset changes before 1970 in the record; the first 12 and the last 12:

tzdata commits to accuracy from 1970 for every zone (zone1970.tab); earlier entries are historical research and may be incomplete.

Aliases and zones with the same clock

These older or country-specific IDs are links to Asia/Taipei in tzdata. Their pages redirect here: ROC.

Other zones that keep exactly the same time under the current rules (but have a different history): Antarctica/Casey, Asia/Hong_Kong, Asia/Irkutsk, Asia/Kuching, Asia/Macau, Asia/Makassar, Asia/Manila, Asia/Shanghai, Asia/Singapore, Asia/Ulaanbaatar, Australia/Perth.

Places on Asia/Taipei

Convert Taipei time

Tip: Alt+↑/↓ steps the time by 15 minutes (Shift: one hour). The link keeps the date, time and direction.

Using Asia/Taipei in code

Every major platform reads the same IANA ID. Store instants in UTC and convert with the ID at display time; never store a fixed offset for a place that has daylight saving time.

// JavaScript
new Date().toLocaleString('en-US', { timeZone: 'Asia/Taipei' })

# Python 3.9+
from zoneinfo import ZoneInfo
from datetime import datetime
datetime.now(ZoneInfo('Asia/Taipei'))

// Java
java.time.ZonedDateTime.now(java.time.ZoneId.of("Asia/Taipei"))

// Go
loc, _ := time.LoadLocation("Asia/Taipei")
time.Now().In(loc)

-- PostgreSQL
SELECT now() AT TIME ZONE 'Asia/Taipei';

# Shell
TZ='Asia/Taipei' date

Platforms ship their own copy of tzdata and update it on their own schedule. After a rule change, outputs can differ until the platform updates; this page uses tzdata 2026f.

Questions

What is the UTC offset of Asia/Taipei?
UTC+8 all year.
Does Asia/Taipei observe daylight saving time?
No, not under the current rules. The last year with daylight saving time in its record is 1979.
Is ROC the same as Asia/Taipei?
Yes. ROC is a link (alias) to Asia/Taipei in tzdata and gives the same time since 1970. It remains a valid ID.
Which countries use Asia/Taipei?
Taiwan, according to zone1970.tab in tzdata.

Related