Function epochs::symbian

pub fn symbian(num: i64) -> Option<NaiveDateTime>

Symbian time is the number of microseconds since the year 0, which is 62,167,219,200 seconds before the Unix epoch.

use epochs::symbian;
let ndt = symbian(63_401_787_090_000_000).unwrap();
assert_eq!(ndt.to_string(), "2009-02-13 23:31:30");