Quiz on units of time – Minutes, Hours, Seconds, Days and more online. This is an interactive online quiz in which kids learn how to convert between the units of time. For example, one hour has 60 minutes and one minute has 60 seconds. There are also activities on days; for example, one day has 24 hours. There are also activities that cover larger time frames like weeks in a month, days in a month and year. Children will familiarize themselves with concepts related to time in this quiz. This is a telling time quiz for 2nd, 3rd, 4th, 5th grade kids. There are loads of activities on telling time also found in the previous grades and under the worksheets section.