Much like from_sec, this function will convert the given secs u64
into a readable time format. But unlike from_sec, this function
will introduce leading 0’s until it reaches the format "00:00:00"
Will attempt to convert the given time string into a u64 of seconds.
time must have the hours, minutes, and seconds separated by colons
respectively in order for this function to work correctly.
Ex: "1:00", "1:00:00", or "2:38".