HOUR

3,600 seconds (4)

Solution has appeared in 2 crosswords (1 across and 1 down):

• Quick crossword No 16,244 — 2022-05-30 23:00:01
  25A: 1965 Wilson Pickett song, In the Midnight ___ (4)
• Quick crossword No 15,887 — 2021-04-07 23:00:00
  18D: 3,600 seconds (4)