When Is the Winter Solstice 2026? US Times and Dongzhi
Core Answer
The 2026 Northern Hemisphere winter solstice is Monday, December 21, at 3:50 p.m. EST in New York, or 20:50 UTC. That same instant is Tuesday, December 22, at 4:50 a.m. in Taipei and Singapore and 5:50 a.m. in Tokyo and Seoul. The different dates come from time zones.
One astronomical moment, two calendar dates
A US calendar saying December 21 and a Dongzhi calendar saying December 22 can both be correct. Winter solstice is an instant in the annual solar cycle; a festival is observed on its local calendar day. Neither requires a family meal to happen at the exact astronomical minute.
This guide answers the date question for 2026, explains the shortest-day claim and helps you keep astronomical timing, cultural customs and BaZi calendar rules separate. It is a Northern Hemisphere guide: the December solstice marks summer in the Southern Hemisphere.
Winter solstice 2026: local date and time
The Hong Kong Observatory lists December 22 at 04:50 in UTC+8; Japan’s National Astronomical Observatory lists December 22 at 05:50 in Japan Standard Time. These agree to the published minute. The remaining rows are time-zone conversions of that instant.
| Place or time standard | Local date | Local time |
|---|---|---|
| New York — Eastern | December 21, 2026 | 15:50 EST (UTC−5) |
| Chicago — Central | December 21, 2026 | 14:50 CST (UTC−6) |
| Denver — Mountain | December 21, 2026 | 13:50 MST (UTC−7) |
| Los Angeles — Pacific | December 21, 2026 | 12:50 PST (UTC−8) |
| UTC | December 21, 2026 | 20:50 |
| Taipei / Singapore | December 22, 2026 | 04:50 (UTC+8) |
| Tokyo / Seoul | December 22, 2026 | 05:50 (UTC+9) |
Times are rounded to the minute, not second-precision predictions. US examples use the named cities and their December standard time; check the actual locality when scheduling elsewhere.
What does “the shortest day” mean?
At the December solstice, the Sun reaches 270° of apparent geocentric ecliptic longitude. In northern latitudes its daily path is low and daylight is near its annual minimum. “Shortest day” refers to daylight, not a civil day becoming shorter than 24 hours. Your city determines the actual sunrise, sunset and daylight duration.
Earliest sunset and latest sunrise need not fall on the solstice. The US Naval Observatory explains how clock time and apparent solar time shift relative to each other. For an outdoor gathering, check the local sunset forecast rather than treating 3:50 p.m. EST as sunset everywhere.
How Dongzhi relates to the solstice
Dongzhi is the Chinese name for the winter-solstice solar term and a festival associated with it. The Hong Kong Observatory’s 2026 December calendar places the UTC+8 observance on the fourteenth day of the eleventh lunar month. It is not fixed to one lunar date every year.
The Singapore Chinese Cultural Centre describes family reunions and tangyuan, sweet glutinous rice balls, as living festival traditions. Singapore has no cold winter, so a snowy Northern Hemisphere image is not a local weather forecast. For a US family with relatives in East Asia, agree whether a celebration follows the US date, the relatives’ date or a convenient weekend.
Does winter solstice start a new BaZi year or month?
Under the Li Chun year-boundary convention used in OpenFate’s BaZi guides, winter solstice does not start the next Year Pillar. January 1, Lunar New Year and Li Chun are different calendar boundaries. A festival’s symbolism of renewal does not make those dates interchangeable.
Month Pillars in this convention change at the twelve Jie boundaries. Winter solstice is an intervening Zhongqi, so it does not introduce another Month-Pillar change. Keep the existing month until its actual next boundary. The linked month-boundary guide explains the rule; the astronomical observatories supply dates, not a personal fortune prediction.
A practical way to plan the day
For a shared online observation, use one timestamp: December 21 at 20:50 UTC. A New York participant joins at 15:50 on Monday; a Taipei participant joins at 04:50 on Tuesday. Those are the same appointment. For an ordinary dinner, choose a comfortable local hour instead of converting the meal into an overnight obligation.
If your goal is a calendar comparison, OpenFate’s Huangli lets you select a date and read its displayed time standard and solar-term information. Check those labels before comparing it with a UTC table. Traditional suitable/avoid labels are a different layer from the observatory’s astronomical event time; they do not establish that the whole solstice day is universally lucky.
FAQ
Is winter solstice December 21 or 22 in 2026?
Is the solstice the coldest day of the year?
Must I celebrate Dongzhi at 04:50?
Sources and calculation notes
Checked October 19, 2026. Observatory times are published to the minute; local conversions use named IANA time zones. The hero is an original atmospheric illustration, not a scale diagram or a photograph of the 2026 event.
Hong Kong Observatory — December 2026
Solar Terms panel: Winter Solstice, December 22, 04:50, lunar month 11 day 14; Hong Kong time.NAOJ — 2026 solar terms
Second solar-terms table, 冬至 row: 270°, December 22, 05:50 Japan Standard Time.US Naval Observatory — sunrise and sunset
Why earliest sunset, latest sunrise and minimum daylight are different questions.Singapore Chinese Cultural Centre — Dongzhi
Sections on reunion, Singapore’s climate and tangyuan customs; cultural evidence rather than a luck guarantee.
Understand the calendar behind the date
Compare the date in OpenFate’s Huangli
Select the day, read the time standard and explore the displayed solar-term information before using the traditional almanac layer.
Open the Huangli calendarDisclaimer: Divination and metaphysical systems are traditional cultural frameworks, not modern science or professional advice. Use this content for reference and make decisions from real-world facts and qualified guidance.