doba słoneczna

A modern computer model gives 365 solar days, 5 hours 49 minutes 19 seconds.

Also, the mean solar day is getting longer at a rate of about 1.5 ms per 100 tropical years.

I've given him two solar days to come up with some kind of a solution.

It tends to run with a period different from that of a solar day!

Consequently, solar days are not the same length throughout the year.

I know it's been at least one standard solar day.

There are 365.2424 solar days in the mean tropical year.

Other types of calendar may also use a solar day.

A solar day is approximately 24 hours of mean time.

A solar day on Mars is 24 hours 39 minutes 35.244 seconds.