Space agencies internally use JDNs (Score 1)

For measuring time on other planets and in outer space, most space agencies and astronomers use proleptic Julian day numbers (https://en.wikipedia.org/wiki/Julian_day). Converting between the JDN time on different planets is simple arithmetic. For example, NASA's Mars Sol date is (current JDN - 2405522)/1.02749. Since humanity's future is expanding into outer space, I wish the world would move to using the same decimal datetime format that international space agencies already use internally.