| Astronomical time period |
| Almanac datum |
| Astronomical time periods |
| Chem. datum |
| Supermarket datum |
| F.B.I. datum |
| Résumé datum |
| Accounting datum |
| Astronomical altar |
| Actuarial datum |
| Basketball datum |
| Annual publication giving dates of astronomical and other events |
| LGA datum |
| Datum. |
| Astronomical periods |
| Oenophile's datum |
| Astronomical difference |
| Car ad datum |
| Airline app datum |
| Astronomical rarity |
| Airline sched. datum |
| Astronomical flare-ups |
| Acct. datum |
| Airport gate datum (abbr.) |
| Altair or Sirius, astronomically speaking |
| Astronomical and lunar |
| Astronomical red giant |
| O'Hare datum: Abbr. |
| Actuarial table datum |
| Astronomical figures |