In the past 125 years, more than 70 authors have published ideas for keeping time on Mars, describing how to divide the martian day and martian year into smaller units. The martian prime meridian was established in the mid-19th century, and the design of the martian clock has been standardised at least since the Viking missions of the 1970s. Scientists can tell time on Mars; however, despite the constant stream of data that is down-linked from Mars these days, there is still no standardised system for expressing the date on Mars. Establishing a standard epoch--at a specific time of year on Mars, and a specific martian year--should be the next priority in martian timekeeping as a minimal system required for the physical sciences. More elaborate ideas, including the number and length of weeks and months, and names thereto, can be deferred for the present, but may become important considerations in coming years.
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Martian Time |
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Martian Time Survey 2.2 |