时运 is literary and refers to the fortune granted by one's circumstances and era. Common compounds: 时运不济 (bad luck) and 时运亨通 (great fortune). It implies that luck is partly determined by the times you live in, not just personal fate.
memory
时 (shí) = time/era and 运 (yùn) = fate/fortune. Together: the fortune of one's era — the luck that comes from living in the right (or wrong) time.
