seconds occasionally updated by the introduction of leap seconds (see current number of leap seconds), then adding the constant difference TT−TAI = 32.184 s. This leads to the following formula giving MSD from the UTC-referred Julian date: MSD = (JDUTC + (TAI−UTC)/86400 − 2405522.0025054) / 1.0274912517 where the difference TAI−UTC is in seconds. JDUTC can in turn be computed from any epoch-based time stamp, by adding the Julian date of the epoch to the time stamp in days. For example, if is a Unix timestamp in seconds, then JDUTC = / 86400 + 2440587.5 It follows, by a simple substitution: MSD = ( + (TAI−UTC)) / 88775.244147 + 34127.2954262 MTC is the fractional part of MSD, in hours, minutes and seconds: MTC = (MSD mod 1) × 24 h For example, at the time this page was last generated (): JDTT = MSD = MTC = See also Astronomy on Mars Universal Time Coordinated Universal Time Notes References External links Martian Time MARS24 Application NASA Algorithms Earth Date to Mars Date Converter NASA Mars Clock (Curiosity Rover) mclock - Command Line Mars Clock TED Talk - What Time Is It On Mars Mars Mars