tmprl dtbs strs dt rltng t tm nstncs. t ffrs tmprl dt typs nd strs nfrmtn rltng t pst, prsnt nd ftr tm.
Tmprl dtbss cn b n-tmprl, b-tmprl r tr-tmprl.
Mr spcfclly th tmprl spcts slly ncld vld tm, trnsctn tm nd/r dcsn tm.
Vld tm s th tm prd drng r vnt tm t whch fct s tr n th rl wrld.
Trnsctn tm s th tm t whch fct ws rcrdd n th dtbs.
Dcsn tm s th tm t whch th dcsn ws md bt th fct. sd t kp hstry f dcsns bt vld tms.