On Mars, seconds, minutes, and hours are exactly the same as those on Earth. However, martian days are longer than days on Earth. Martian time is denoted using hh:mm:ss or +mm:ss. For example, we would have 13:43 of the day. We also have +25:53 which is after the first 24 hours. This extended notation must be less than +39:35.24409.

There are 25 timezones on Mars. For easier time conversions, each timezone is separated by 1 hour. Thus each timezone covers 14.5987 degrees instead of 15 degrees. As a side note, the prime meridian on Mars is the longitude that passes through Airy-0. Longitudes are from 0 to 360.

Timezone	Start Longitude	End Longitude	Hours Deficit from 0 Timezone
0	0°	14.5987°	0
1	14.5987°	29.1974°	+1
2	29.1974°	43.7961°	+2
3	43.7961°	58.3948°	+3
4	58.3948°	72.9935°	+4
5	72.9935°	87.5922°	+5
6	87.5922°	102.1909°	+6
7	102.1909°	116.7896°	+7
8	116.7896°	131.3883°	+8
9	131.3883°	145.9870°	+9
10	145.9870°	160.5858°	+10
11	160.5858°	175.1845°	+11
12	175.1845°	189.7832°	+12
13	189.7832°	204.3819°	+13
14	204.3819°	218.9806°	+14
15	218.9806°	233.5793°	+15
16	233.5793°	248.1780°	+16
17	248.1780°	262.7767°	+17
18	262.7767°	277.3754°	+18
19	277.3754°	291.9741°	+19
20	291.9741°	306.5728°	+20
21	306.5728°	321.1715°	+21
22	321.1715°	335.7702°	+22
23	335.7702°	350.3689°	+23
24	350.3689°	360°	+36:35