Alert: You are not allowed to copy content or view source
Check Exam Dates here | See Marking Scheme here | Frequently Asked Questions (FAQs) | Buy Practice Papers for CREST Olympiads here | Last Date for CREST Reasoning Olympiads (CRO) Registration is 20th June 2019 | CREST Reasoning Olympiads (CRO) is scheduled for June/July. Apply now


The basic unit of time. There are 60 seconds in 1 minute and 3,600 seconds in an hour. In this clock the hand that moves the fastest shows the seconds. It is called the "Second Hand". One second is approximately the time of one heartbeat when you are rest