A Martian day is called a Sol and lasts 24 hours, 37 minutes, and 22 seconds — just 2.7% longer than an Earth day. NASA missions like Curiosity and Perseverance operate on Sol time, with mission teams adjusting their schedules by 37 minutes each day.
Mars orbits the Sun every 687 Earth days (about 669 Sols). Its axial tilt of 25.2° produces seasons similar to Earth's, though each season lasts nearly twice as long. Dust storms can envelope the entire planet, lasting for months of Sol time.
Frequently Asked Questions
How long is a Sol on Mars?
One Sol is 24 hours, 37 minutes, and 22 seconds — about 2.7% longer than an Earth day.
How do NASA rovers keep time on Mars?
NASA uses Mars Sol Date (MSD) calculated from an epoch reference, and rover teams work on Sol-shifted schedules.
How long is a Martian year?
Mars orbits the Sun every 687 Earth days, equal to about 668.6 Sols.