It seems like there might be a small typo in your query, as "ut1" doesn't appear to be a standard English word. However, it seems like you might be referring to "UTC," which stands for Coordinated Universal Time. If that's the case, I can explain "UTC" in simple terms for you!
Word: UTC
Part of Speech: Noun
UTC is often used in fields such as aviation, computing, and international communications to avoid confusion caused by time zone differences.
There are no specific idioms or phrasal verbs that include "UTC," but you might hear phrases like "in sync with UTC," meaning to be aligned with the time standard.
UTC is a crucial concept in our globalized world, helping people coordinate activities and communications across different time zones.