switch ClockTime to have a better internal representation
switch ClockTime to have a better internal representation

Ignore-this: 4edba186562071c808dcd1fcc3fc6fa8

darcs-hash:20090821041236-1a7c6-740ad93d0c8453052f3d0bd721a8a0b9366e07ac

kirbyfan64/jhc,kirbyfan64/jhc,kirbyfan64/jhc,kirbyfan64/jhc