The History of Daylight Saving Time in Taiwan: Experiments, Oil Crises, and Why It Ended

Does Taiwan Observe DST Today?

Taiwan stays on National Standard Time (UTC+8) every single day of the year. There is no “spring forward” in March and no “fall back” in October. Your phone, laptop, and wristwatch never need a DST adjustment when you are in Taipei, Kaohsiung, Taichung, or the outlying islands of Kinmen, Matsu, and Penghu.

On 21 December 2026, sunrise in Taipei is at 06:34 and sunset at 17:09, giving 10 hours 35 minutes of daylight. On 21 June 2026, sunrise is at 05:04 and sunset at 18:46: 13 hours 42 minutes of daylight. The sun shifts with the seasons. The clock does not.

Taiwan is one of the few places in East Asia that tried seasonal clock changes, ran the numbers, and stopped. Japan and South Korea debated DST for decades but never adopted it. Taiwan actually tested it.

The DST Experiments: 1945-1961

Taiwan’s first encounter with DST came right after World War II. The island had just reverted from Japan Standard Time (UTC+9) to UTC+8 under the Republic of China administration. Between 1945 and 1961, the government set clocks forward during summer months in a series of irregular experiments.

The exact dates shifted year to year. Some years the change lasted three months, others five. Records from the period are fragmentary. The IANA time zone database lists “various” DST periods for those years. What is clear: the program was inconsistent and poorly communicated. Farmers, who made up a much larger share of the population then, complained that the clock change disrupted livestock schedules and harvest timing.

By 1961, the government let the practice lapse. No formal repeal was needed. They simply stopped announcing the change.

The Oil Crisis Revival: 1974-1975

The 1973 oil crisis changed how the world thought about energy. Taiwan looked for ways to cut electricity consumption. In 1974 the government brought DST back with a clear mandate: save fuel and reduce evening power demand.

The experiment lasted two years. The results were underwhelming. Taiwan sits between latitudes 24° and 26° North, firmly subtropical. The difference in daylight between summer and winter is moderate. On the June solstice Taipei gets 13 hours 42 minutes of daylight. On the December solstice it gets 10 hours 35 minutes. That is a swing of about 3 hours 7 minutes.

Compare that to New York City at 40° North, where the solstice daylight difference is nearly 6 hours. The further from the equator you go, the more DST saves. Taiwan is not far enough.

Energy savings from the 1974-1975 experiment were estimated at less than 1% of total electricity use. The cost of adjusting schedules, reprogramming time clocks, and dealing with public annoyance outweighed the benefit.

The Final Experiment: 1979

Taiwan gave DST one last try in 1979. A short, isolated test. The government set clocks forward in the summer, watched the meters, and got the same answer: minimal savings, maximum confusion.

The 1979 experiment was Taiwan’s last. After that year, the government made no further announcements. No legislation was passed to ban DST. It simply was not done anymore. No serious proposal to reintroduce it has been made since.

Why Taiwan Abandoned DST Permanently

Two big reasons and one practical one explain why Taiwan will never spring forward again.

Tropical Latitude and Limited Energy Savings

This is the decisive reason. Taiwan’s latitude means the sun rises and sets at relatively consistent times year-round. On the shortest day of the year, the sun still rises after 06:30, not the 07:30 or 08:00 that northern countries experience in December. The extra hour of evening light that DST creates is simply not worth much when your shortest day still has over 10 hours of daylight.

Businesses and government buildings already shifted their schedules seasonally in some sectors without touching the clocks. Factories started earlier in summer, later in winter. The clock change added complexity without solving anything.

Public Confusion and Resistance

Taiwan’s experiments with DST were never consistent. The 1945-1961 period changed start and end dates unpredictably. The 1974-1975 revival came and went. The 1979 test was a one-off. People never developed the habit.

In countries with long DST traditions, the clock change is automatic. In Taiwan, each experiment required public education campaigns, and each time the public asked the same question: why are we doing this? The government never had a good answer that matched the data.

Cultural and Practical Inertia

Once Taiwan stopped DST in 1979, life went on. The stock market opened at 09:00 and closed at 13:30. Schools started at 07:30. Night markets opened at 17:00. None of these schedules suffered.

Today, Taiwan’s time zone is aligned with its major trading partners. China, Singapore, Malaysia, and the Philippines all use UTC+8. Japan and South Korea are one hour ahead. That alignment works. Changing clocks would put Taiwan out of sync with its largest economic partners for part of the year.

How Taiwan Compares to Neighbors on DST

Japan has debated DST several times, most seriously after the 2011 Fukushima disaster when energy conservation became urgent. Nothing passed. South Korea discussed DST in the 1980s and again in the 2000s. Nothing passed. China observed DST from 1986 to 1991, then abandoned it for the same reasons as Taiwan: minimal benefit at Chinese latitudes, massive coordination headaches.

The only East Asian economies that currently use DST are Mongolia, intermittently, and some parts of Indonesia, locally and not nationally. The region has voted with its clocks. UTC+8 stays put.

Some Taiwanese independence advocates have proposed renaming the time zone to “Taiwan Standard Time” (TST) to remove the “China Standard Time” (CST) label. That is a political suggestion, not a time-change proposal. It would keep the same UTC+8 offset.

Could Taiwan Ever Reintroduce DST?

Not in the foreseeable future. No political party has included DST in its platform. No energy crisis has been severe enough to revive the idea. The 1979 experiment settled the question for good.

The next change to how time works in Taiwan will not be a clock change. It might be a name change: “Taiwan Standard Time” replacing “China Standard Time” on official documents. It might be a shift to UTC+9, which some business groups have floated to align with Tokyo and Seoul. Neither proposal has legislative traction as of 2026.

For now, and for the foreseeable future, your Taipei clock stays at UTC+8 all year.