zhòng yào yù yuē kě yǐ yòng èr shí sì xiǎo shí zhì zài què rèn yī cì bǐ rú shí wǔ diǎn duì ma

重要预约可以用二十四小时制再确认一次，比如“十五点，对吗？

For important appointments, you can reconfirm using the 24-hour clock, for example, '15:00, right?'