无时无刻
Meanings
1. (idiom) (when followed by 不 (bù)) at no time; never (Note: 无时无刻不 (wúshíwúkèbù) therefore means "at no time not ...", i.e. "at all times".)
2. (when not followed by 不 (bù)) at all times; always
Characters used
Examples1
汤姆
Tom and Mary argue with each other all the time.