| Clue | Source | Date |
|---|---|---|
| Global time standard (abbr.) | TV | 08 Mar 2026 |
| World clock std. | New York Times | 15 Apr 2025 |
| Global time standard (abbr.) | TV | 02 Feb 2025 |
| Standard time zone abbr. | TV | 28 Jul 2024 |
| Intl. clock standard which is the successor to GMT | ||
| Abbreviated successor of GMT | Newsday | 28 Aug 2022 |