Forty Episodes

The Longest Day in Chang'an 长安十二时辰

Compare streaming options, subtitles, and dubs.

3 ways to watch this in the United States

Rakuten Viki Free episodes VIP for early access Best option here

Viki confirms the full 48 episodes with English subtitles. Pricing was not stated for this title, so expect a possible Pass wall.

Licenses Chinese dramas for overseas viewers. Subtitles are fan-made and usually excellent.

All 48 episodes.

Subtitled inGerman, English, Spanish, French, Hungarian, Indonesian, Italian, Polish, Portuguese, Romanian, Swedish, Ukrainian, Vietnamese, Chinese

Dubbed inNot dubbed — original Mandarin audio.

Watch on Rakuten Viki

First time on Rakuten Viki?

  1. Open viki.com or install Viki. Availability is per-title and per-country, so a show can be here for you and missing for a friend abroad.
  2. Free viewing includes ads. Viki Pass removes them and unlocks some titles.
  3. Subtitles are volunteer-made — a brand-new episode may sit at partial coverage for a few hours before it reaches 100%.

Checked 29 Sep 2026.

Also available on

Amasian TV Free

Free Asian-drama streamer run by ODK Media. Its own page names the United States, Canada and Mexico as the countries it serves.

48 episodes, complete.

Subtitled inEnglish, Chinese (Simplified)

Dubbed inNot dubbed — original Mandarin audio.

Watch on Amasian TV

First time on Amasian TV?

  1. Open amasian.tv and use Search. No account is needed to watch.
  2. A series page shows only the first 20 episodes. The later ones are there: each episode has its own page.
  3. Pick subtitles with the subtitles button in the player. There is no audio choice.

Checked 4 Oct 2026.

Prime Video Buy or rent

Carries a thin slice of Chinese drama, and often as a purchase rather than as part of Prime.

48 episodes, complete.

Subtitled inEnglish, French (AI)

Dubbed inNot dubbed — original Mandarin audio.

Watch on Prime Video

First time on Prime Video?

  1. Search the English title. Chinese dramas on Prime are frequently listed under an alternate English name, and occasionally under a title that belongs to an entirely different film — check the cast before you buy.
  2. Read the price line carefully. A Chinese drama here is often buy-or-rent rather than included with a Prime subscription, which the storefront does not make obvious.
  3. Prime’s Chinese catalogue varies sharply between countries, more so than the rest of its library.

Checked 4 Oct 2026.

古装 costume, 悬疑 thriller

A death-row prisoner is let out of his cell for twelve hours to stop a plot against Tang-dynasty Chang'an during the Lantern Festival, while the factions who need him to fail work their own angles. Enormously detailed, and the best-looking Chinese period drama of its era.

Made by 优酷信息技术(北京)有限公司、东阳留白影视文化有限公司、霍尔果斯娱跃文化传播有限公司、徐州仨仁影视制作有限公司等 · Premiered on Youku

Check the latest yourself:微博 official account百度百科MyDramaList

Country checks not yet published: Australia, Canada, Hong Kong, India, Mainland China, Malaysia, Philippines, Singapore, Taiwan, Thailand, United Kingdom.