無時無刻

1. • (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".)

     idiom

2. • (when not followed by 不 bù) at all times always

Character by character

• 無(wú)not to have
• 時(shí)surname Shi
• 無(wú)not to have
• 刻(kè)quarter