| The King of Yesterday and Tomorrow | |
|---|---|
 Official poster | |
| 九五至尊 | |
| Genre | Comedy drama Time travel |
| Written by | Chan Ching-yee Choi Ting-ting |
| Starring | Kwong Wa Maggie Cheung Ho-yee Melissa Ng |
| Theme music composer | Tse Hak-lam |
| Opening theme | Choi Kau Bo (彩構步) by Kwong Wa |
| Ending theme | Yin Juk Yat Sang Dik Mei Lai (延續一生都美麗) by Kwong Wa |
| Country of origin | Hong Kong |
| Original language | Cantonese |
| No. of episodes | 20 |
| Production | |
| Executive producer | Siu Hin-fai |
| Production location | Hong Kong |
| Camera setup | Multi camera |
| Running time | 45 mins. (each) |
| Production company | TVB |
| Original release | |
| Network | TVB Jade |
| Release | 27 January – 21 February 2003 |
| Infobox instructions (only shown in preview) | |
The King of Yesterday and Tomorrow (Chinese: 九五至尊; Jyutping: gau2 ng5 zi3 zyun1) is a Hong Kong comedy television drama produced by Siu Hin-fai and TVB. It originally aired on TVB Jade from 27 January to 21 February 2003. According to legend, Yongzheng Emperor of the Qing dynasty may not have died of natural causes and was actually assassinated. The plot is an imaginative time-traveling story based on the continuation of what happens after the assassination attempt.
With an average of 2.21 million viewers (34 points), the drama is the fourth highest rating drama series of 2003. It received five nominations at the TVB Anniversary Awards, winning four. Maggie Cheung Ho-yee won the TVB Anniversary Award for Best Actress and one of twelve My Favourite Television Character awards, while Paul Chun won My Favourite Powerhouse Actor. Kwong Wa was nominated for the TVB Anniversary Award for Best Actor, and won one of twelve My Favourite Television Character awards.
The name of the show is a pun as 九五 refers to both the scope of the Emperor's power (九五至尊 means the most respected person who holds dominion over the nine X and five X) and also to office work hours (九五 is short for 九到五, meaning Nine to Five).