I searched for "wake" in All Messages, and this is what I got (no BOOT_TIME entries found):
26/07/15 05:00:52,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 1 us
26/07/15 05:00:52,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 0 milliseconds
26/07/15 06:49:01,000 kernel[0]: Wake reason: RTC (Alarm)
26/07/15 06:49:01,000 kernel[0]: vm_compressor_fastwake_warmup (17292 - 18369) - starting
26/07/15 06:49:01,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 2 us
26/07/15 06:49:01,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 5 milliseconds
26/07/15 06:49:01,000 kernel[0]: vm_compressor_fastwake_warmup completed - took 2494 msecs
26/07/15 06:49:01,000 kernel[0]: ARPT: 41312.925953: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
26/07/15 06:49:01,121 WindowServer[150]: CGXDisplayDidWakeNotification [41312953808946]: posting kCGSDisplayDidWake
26/07/15 06:49:06,182 sharingd[247]: 06:49:06.182 : Starting AirDrop server for user 501 on wake
26/07/15 06:49:07,718 ntpd[173]: wake time set +0.921349 s
26/07/15 07:04:24,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 2 us
26/07/15 07:04:24,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 0 milliseconds
26/07/15 08:14:27,000 kernel[0]: Wake reason: EC.SleepTimer (SleepTimer)
26/07/15 08:14:27,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 1 us
26/07/15 08:14:27,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 1 milliseconds
26/07/15 08:14:29,000 kernel[0]: ARPT: 42240.270212: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
26/07/15 08:14:30,216 ntpd[173]: wake time set +0.858479 s
26/07/15 08:15:18,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 1 us
26/07/15 08:15:18,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 0 milliseconds
26/07/15 10:03:27,000 kernel[0]: Wake reason: RTC (Alarm)
26/07/15 10:03:27,000 kernel[0]: vm_compressor_fastwake_warmup (18373 - 19570) - starting
26/07/15 10:03:27,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 2 us
26/07/15 10:03:27,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 5 milliseconds
26/07/15 10:03:27,000 kernel[0]: vm_compressor_fastwake_warmup completed - took 2235 msecs
26/07/15 10:03:27,000 kernel[0]: ARPT: 42297.868565: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
26/07/15 10:03:27,222 WindowServer[150]: CGXDisplayDidWakeNotification [42297988006504]: posting kCGSDisplayDidWake
26/07/15 10:03:32,192 sharingd[247]: 10:03:32.191 : Starting AirDrop server for user 501 on wake
26/07/15 10:03:33,196 ntpd[173]: wake time set +0.784814 s
26/07/15 10:10:17,061 WindowServer[150]: CGXDisplayDidWakeNotification [42707095446165]: posting kCGSDisplayDidWake
26/07/15 11:05:19,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 2 us
26/07/15 11:05:19,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 0 milliseconds
26/07/15 12:15:21,000 kernel[0]: Wake reason: EC.SleepTimer (SleepTimer)
26/07/15 12:15:21,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 1 us
26/07/15 12:15:21,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 1 milliseconds
26/07/15 12:15:23,000 kernel[0]: ARPT: 46014.452613: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
26/07/15 12:15:23,788 ntpd[173]: wake time set +0.533307 s
26/07/15 12:16:23,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 1 us
26/07/15 12:16:23,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 0 milliseconds
26/07/15 12:44:19,000 kernel[0]: Wake reason: EC.PowerButton (User)
26/07/15 12:44:19,000 kernel[0]: vm_compressor_fastwake_warmup (19584 - 21584) - starting
26/07/15 12:44:19,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 1 us
26/07/15 12:44:19,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 5 milliseconds
26/07/15 12:44:19,000 kernel[0]: vm_compressor_fastwake_warmup completed - took 3361 msecs
26/07/15 12:44:19,000 kernel[0]: ARPT: 46086.490869: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
26/07/15 12:44:19,140 WindowServer[150]: CGXDisplayDidWakeNotification [46086521053120]: posting kCGSDisplayDidWake
26/07/15 12:44:24,204 sharingd[247]: 12:44:24.203 : Starting AirDrop server for user 501 on wake
26/07/15 12:46:10,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 1 us
26/07/15 12:46:10,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 0 milliseconds
26/07/15 13:56:12,000 kernel[0]: Wake reason: EC.SleepTimer (SleepTimer)
26/07/15 13:56:12,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 2 us
26/07/15 13:56:12,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 1 milliseconds
26/07/15 13:56:14,000 kernel[0]: ARPT: 46200.904824: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
26/07/15 13:57:04,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 2 us
26/07/15 13:57:04,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 0 milliseconds
26/07/15 14:39:33,000 kernel[0]: Wake reason: EC.PowerButton (User)
26/07/15 14:39:33,000 kernel[0]: vm_compressor_fastwake_warmup (21591 - 23044) - starting
26/07/15 14:39:33,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 22 us
26/07/15 14:39:33,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 5 milliseconds
26/07/15 14:39:33,000 kernel[0]: vm_compressor_fastwake_warmup completed - took 2653 msecs
26/07/15 14:39:33,000 kernel[0]: ARPT: 46262.082844: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
26/07/15 14:39:33,212 WindowServer[150]: CGXDisplayDidWakeNotification [46262114446254]: posting kCGSDisplayDidWake
26/07/15 14:39:38,311 sharingd[247]: 14:39:38.311 : Starting AirDrop server for user 501 on wake
26/07/15 14:39:39,509 ntpd[173]: wake time set +0.849513 s
26/07/15 15:31:07,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 2 us
26/07/15 15:31:07,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 0 milliseconds
26/07/15 15:32:26,000 kernel[0]: Wake reason: EC.PowerButton PWRB (User)
26/07/15 15:32:26,000 kernel[0]: AppleThunderboltNHIType2::prePCIWake - power up complete - took 2 us
26/07/15 15:32:26,000 kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 1 milliseconds
26/07/15 15:32:26,217 WindowServer[150]: CGXDisplayDidWakeNotification [49357805501589]: posting kCGSDisplayDidWake
26/07/15 15:32:31,000 kernel[0]: ARPT: 49362.744546: AirPort_Brcm43xx::powerChange: System Wake - Full Wake/ Dark Wake / Maintenance wake
26/07/15 15:32:31,197 sharingd[247]: 15:32:31.196 : Starting AirDrop server for user 501 on wake