| Keyword | Description | Symbol / Usage |
| cty | Century | [cty.] |
| d | Day | d. |
| dcd | Decade | [dcd.] |
| dsr | Day (sidereal) | [dSR.] |
| fnt | Fortnight | [fnt.] |
| h | Hour | h. |
| hsr | Hour (sidereal) | [hSR.] |
| min | Minute | min. |
| minsr | Minute (sidereal) | [minSR.] |
| mln | Millenium | [mln.] |
| mmo | Month (mean) | [mmo.] |
| mo | Month (30 days) | [mo.] |
| ns | Nano-second | {ns.} |
| prahar | Prahar (india) | [prahar.] |
| s | Second | s. |
| shake | Shake | [shake.] |
| ssr | Second (sidereal) | [sSR.] |
| wk | Week | {wk.} |
| yr | Year (defa, 365d 5h 48min 46s) | {yr.} |
| yr365 | Year (calendar, 365 days) | {yr365.} |
| yrsr | Year (sidereal) | [yrSR.] |
| yrtp | Year (tropical) | [yrTP.] |