--- a/src/chess/rules.c Fri Apr 17 12:40:47 2026 +0200 +++ b/src/chess/rules.c Fri Apr 17 13:10:14 2026 +0200 @@ -828,7 +828,7 @@ unsigned minutes = (time % 3600) / 60; unsigned seconds = time % 60; if (hours > 0 || always_hours) { - snprintf(str, 9, "%02u:%02u:%02u", hours, minutes, seconds); + snprintf(str, 9, "%u:%02u:%02u", hours, minutes, seconds); } else { snprintf(str, 6, "%02u:%02u", minutes, seconds); }