- // If either player has ten minutes or less left, add the second counters.
- var show_seconds = (white_clock_ms < 60 * 10 * 1000 || black_clock_ms < 60 * 10 * 1000);
+ // If either player has twenty minutes or less left, add the second counters.
+ // This matches what DGT clocks do.
+ var show_seconds = (white_clock_ms < 60 * 20 * 1000 || black_clock_ms < 60 * 20 * 1000);