Since the FAQ for NTP specifically states why NTP time sync doesn't work 'right' under virtual machines, it's probably an insurmountable problem.

解决方案NTP的常见问题解答明确说明了NTP时间同步在虚拟机下无法正常工作，这可能是一个不可逾越的问题。

youdao

This mode provides less protection against transaction loss than SYNC, in exchange for a shorter transaction response time than SYNC mode.

此模式虽然比SYNC模式提供较少的事务丢失保护，但比SYNC模式的事务响应时间要短一些。

youdao

Sticking to a regular bedtime and wake time schedule helps keep you in sync with your body's circadian clock, a 24-hour internal rhythm affected by sunlight.

坚持按时睡觉和起床能帮助你保持和自己的生物钟同步，生物钟是受阳光影响的24小时的内在节奏。

youdao

Each submission should include basic contact information, camera info, as well as a time sync reference.

CNN: SHARE THIS

The other site I played with for a while until it became too much of a time sync is Turntable.fm.

FORBES: My Big Messy Social Life

If you'd rather not take the time to sync, the band can store up to nine months of data between syncs.

WSJ: A Health Monitor to Nudge You as It Keeps Watch