Thus time and time's relativity are measurable by any hourglass, alarm clock, or atomic clock that can measure a billionth of a second.

因此，时间和时间的相对性可以用任何沙漏、闹钟或原子钟来测量，其中原子钟可测量出十亿分之一秒。

youdao

You should wake up on time naturally without an alarm.

没有闹钟的情况下你也应该按时起床。

youdao

Xiaofan, a smart boy from Shenzhen, used to have difficulty in getting up on time, and his alarm clock was of no use at all.

小凡，一个来自深圳的聪明男孩，曾经很难按时起床，他的闹钟根本没用。

youdao

Setting the time and your wake-up alarm has never been easier thanks to Halo 3's auto-sync time and alarms feature.

ENGADGET: Gear4 spreads Lightning connector love with $129 alarm clock, $79 portable speaker dock

We had no qualms with most of these tools -- the only silly bit was the lack of customizable alarm time options for calendar events.

ENGADGET: LG GW300 impressions Mobile

Set an alarm in the app, dock your device, and the time and in-app alarms automatically sync to the Halo 3.

ENGADGET: Gear4 spreads Lightning connector love with $129 alarm clock, $79 portable speaker dock