| PLUSONE | Date, such as 31st is to 30th |
| EVE | December 31st is New Year's ... (3) |
| TAXYEAR | It ends on 30th June and starts again next day, for breadwinners (3,4) |
| FICTION | Classic Tarantino flick celebrating its 30th anniversary (4,7) |
| NIRVANA | On 30th October 1989, Kurt Cobain brought grunge to Norfolk when ... played the Norfolk Arts Centre (7) |
| UPEARLY | 30th anniversary gift |
| MONTOYA | Julian - - - , Argentina captain who celebrated his 30th birthday the day after the World Cup final (7) |
| THEFASTSHOW | 1994-2014 British comedy series that went on the road in 2024 for a live 30th-annivesary tour (3,4,4) |
| INCOMETAXRETURNS | April 30th Deadline! Filings to Revenue Canada: 3 wds. |
| PEARL | Traditionally which gemstone is linked to a 30th-wedding anniversary? (5) |
| DANCINGWITHTHE | ___ Stars had its 30th season (7,4,3) |
| EOM | The 30th or 31st, usually, to an accountant: Abbr. |
| NIGHT | Name given to the evening of April 30th, believed to be the night of a witches' sabbath in German fo |
| WALPURGIS | Name given to the evening of April 30th, believed to be the night of a witches' sabbath in German fo |
| GIRLS | Down Female band whose 30th anniversary is being celebrated on stamps (3,5,5) |
| BRITISHEMPIREGAMES | 70th Anniversary! Commonwealth athletes competed in this international multi-sport event in Vancouver from July 30th to August 7th, 1954: 3 wds. |
| UMATHURMAN | "Pulp Fiction" star [*November 4 marks the 30th anniversary of my professional crossword debut, so here's a throwback to that first puzzle!] |
| ANORA | The 30th Critics' Choice Awards were held on Friday in Santa Monica; Best Picture went unexpectedly to this dramedy that had failed to win any of the other six categories in which it was nominated |
| PEARLHARBOR | Where to celebrate a 30th anniversary in Hawaii |
| IOWA | U.S. state ranking 30th in population as of 2013 |