| 100% | TETS | 4 | ''Festivals of the first day'' |
| 90% | TET | 3 | Vietnamese holiday whose full name translates to "festival of the first day" |
| 80% | MAYDAY | 6 | The first day of the fifth month |
| 79% | MONDAY | 6 | The first day of Lent in Greece: Clean __ |
| 79% | BUTWHYCANTIWEARIT | 17 | ...on the first day of school |
| 78% | JOANBAEZ | 8 | *Singer on the first day of Woodstock |
| 78% | TET | 3 | Holiday celebrating the first day of spring |
| 78% | SHANATOVA | 9 | Greeting on the first day of Tishri |
| 78% | ASHES | 5 | Symbol on the first day of Lent |
| 77% | ASHES | 5 | Symbol bestowed on the first day of Lent |
| 77% | PARTRIDGE | 9 | Bird given on the first day of Christmas |
| 77% | BREAKFAST | 9 | The first meal of the day |
| 77% | MONDAY | 6 | First day of the work week |
| 76% | ASHES | 5 | They're bestowed on the first day of Lent |
| 76% | SYLLABUS | 8 | Professor's handout on the first day of class |
| 76% | MON | 3 | First day of the work week: Abbr. |
| 76% | MON | 3 | First day of the workweek, typically (abbr.) |
| 76% | MON | 3 | First day of the workweek, typically: Abbr. |
| 76% | SAT | 3 | First day of the weekend, for short |
| 76% | BREAKFAST | 9 | First meal of the day |
| 76% | ONEAM | 5 | First stroke of the day |
| 76% | DAWN | 4 | First light of the day |
| 75% | REST | 4 | "Today is the first day of the ___ of your life" |
| 75% | SENTTO | 6 | “On the first day of Christmas, my true love ___ me ... ” |
| 75% | RAVI | 4 | He performed before Melanie on the first day of Woodstock |
| 75% | CALENDS | 7 | First day of the month, in ancient Rome |
| 74% | SHY | 3 | Having trouble making friends on the first day of school, say |
| 74% | MOON | 4 | Harvest ___ viewing, popular tradition to celebrate the first day of fall |
| 74% | MON | 3 | First day of the work week usually, for short |
| 74% | CALENDS | 7 | First day of the month in Ancient Roman calendar |