| Answer | Crossword Clue |
|---|---|
| GST | Setting for 0 degrees (abbr.) |
| GMT | Clock setting at 0 degrees longitude (Abbr.) |
| GMT | Clock setting at 0 degrees longitude: Abbr. |
| GST | Setting at 0 degrees long. |
| GST | Standard setting at 0 degrees long. |
| SINE | 0, for 180 degrees |
| SINE | 0.5, for 30 degrees |
