Two clocks are being tested against a standard clock located in a national laboratory. At 12:00:00 noon by the standard clock, the readings of the two clocks are :
| _ | Clock 1 | Clock 2 |
| Monday | 12:00:05 | 10:15:06 |
| Tuesday | 12:01:15 | 10:14:59 |
| Wednesday | 11:59:08 | 10:15:18 |
| Thursday | 12:01:50 | 10:15:07 |
| Friday | 11:59:15 | 10:14:53 |
| Saturday | 12:01:30 | 10:15:24 |
| Sunday | 12:01:19 | 10:15:11 |
If you are doing an experiment that requires precision time interval measurements, which of the two clocks will you prefer ?