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1. Operate too slowly. For example, My watch loses time, or This clock loses five minutes a day. This usage is always applied to a timepiece. [Mid-1800s]
2. Waste time, delay, as in We wanted to paint the entire porch today, but we lost time trying to find a color that matched the house . This expression is sometimes put negatively as lose no time, meaning "act immediately" or "not delay," as in We must lose no time in getting him to the hospital. [Late 1500s] Also see make up for lost time.
1. To operate too slowly. Used of a timepiece.
2. To delay advancement.