Actually, I was mistaken - my Airport Extreme's clock is fast smile The log shows this:
Code:
Feb 14 19:54:47	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 14 20:54:47	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 14 21:54:48	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 14 22:54:49	5	Clock synchronized to network time server time.apple.com (adjusted -2 seconds).
Feb 14 23:54:49	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 00:54:50	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 01:54:50	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 02:54:51	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 03:54:51	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 04:54:52	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 05:54:52	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 06:54:53	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 07:54:53	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 08:54:53	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 09:54:54	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 10:54:54	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 11:54:55	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 12:54:55	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 13:54:56	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 14:54:56	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 15:54:57	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 16:54:58	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 17:54:58	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 18:54:58	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 19:54:59	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 20:54:59	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 21:55:02	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 15 22:55:02	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 15 23:55:04	5	Clock synchronized to network time server time.apple.com (adjusted -1 seconds).
Feb 16 00:55:04	5	Clock synchronized to network time server time.apple.com (adjusted +0 seconds).
Feb 16 01:55:06	5	Clock synchronized to network time server time.apple.com (adjusted -2 seconds).
_________________________
Matt