The system where the average 24 hour day anchored to the sunrise/noon/sunset cycle is converted into constant rotation at a rate of 15 degrees per hour has not been explained before nor has the system where the rotations are used seamless to create the calendar format of 365/366 days. They both come together as the masterpiece that is human timekeeping for those who can follow the close proximity between the planetary cycles and years, 24 days, equable hours, minutes and seconds.

https://www.youtube.com/watch?v=T-g27KS0yiY

It may never happen that the same longitude system nor calendar framework is applied to Mars with its own unique timekeeping divisions on one side and the calendar format on the other but this will not be because the principles aren't there but rather the people who can accept them for Earth.

What a lovely thing to do for people who can do it.