Rating: 3.0

Faking the date seemed to be the aim here, so I instantly thought of using the faketime command on Linux to run the exectuable.

The date to set was easy, as given in the hint "Perseverance Arrives at Mars!"

Running faketime '2021-02-18' ./time gives the output:

Flag: DO{V3ry_n1Ce_t1MInG5_!1}