is dependent origination akaliko and Nibbana
Akalio means that it is timeless, which is it works all the time and not specific times, it is unconditioned by time and season, it is effective immediately with the laps in time, the past and future. It's working is never suspended or stopped.

The society may believe or not believe it. The Buddha's dhamma may exit or not, even if a Buddha (who preaches this dhamma) exists or not. Regardless this is the reality for all times unconditioned by time.