24 seconds. Every shí will contain 8 kè, with 7 or 8 full kè and partial beginning and/or ending kè. These fractional kè are multiples of kè, or 2 minutes 24 seconds. The 7 or 8 full kè within each shí were referred to as "major kè" (). Each of a kè was called a "minor kè" (). Describing the time during daylight Both shí and kè would be used to describe the time accurately. There are two ways of doing this. Eight kè mode. Before the Tang dynasty, the shí were noted first, then each of the major kè were counted up to 8. As an example, counting by major kè from the first shí to the second would look like this: zǐ (), zǐ 1 kè (), zǐ 2 kè (), zǐ 3 kè (), zǐ 4 kè (), zǐ 5 kè (), zǐ 6 kè (), zǐ 7 kè (), zǐ 8 kè (), chǒu. (). Given the time xū 1 kè (), this would be read as "1 kè after xū shí", making the time 20:09:36. Four kè mode. After the Tang dynasty's introduction of "initial" and "central" parts of the shí, the shí was still noted first, but with an added description of which half of the shí the kè was taking place in. Since this narrowed the range of the possible major kè down to four, it was only necessary to specify the major kè between one and four. This would change our first example above to look like this: zǐ initial (), zǐ initial 1 kè (), zǐ initial 2 kè (), zǐ initial 3 kè (), zǐ initial 4 kè (), zǐ central (), zǐ central 1 kè (), zǐ central 2 kè (), zǐ central 3 kè (), zǐ central 4 kè (), chǒu initial (). Given the time sì central 3 kè (), this would be read as "the third kè in the second half of sì", making the time 11:31:12. Smaller time units Fēn Kè were subdivided into smaller units, called fēn (). The number of fēn in each kè varied over the centuries, but a fēn was generally defined as of a day. Using this definition, one fēn is equal to 14.4 seconds. This also means that a fēn is of a major kè and of a minor kè. Miǎo In 1280, Guo Shoujing's Shòushí Calendar () had