Synonyms for Hours:

n.

•points of time (noun)
weeks, periods, epochs, months, seconds, milliseconds, Centuries, semesters, times, decades, days, Eras, microseconds, ages, Generations, lifetimes, terms, minutes, millennia, years.

Usage examples for hours

1. It may look very different in a few hours – Ashton-Kirk, Investigator by John T. McIntyre

2. I have thought and thought long hours and I think I am right. – Taken Alive by E. P. Roe

3. For twenty- four hours she had been without sleep. – The Last Shot by Frederick Palmer