60 seconds per minute (per definition)

3600 seconds per hour (60 times 60)

86,400 seconds per day (3600 times 24 for a Solar day)

31,536,000 seconds per general year (86,400 times 365)

Add 20,926 seconds (5 hours or 18000 seconds, 48 minutes or 2880 seconds and 46 seconds localizes the time to our Solar System)

31,556,926 seconds per calibrated year

31,556,926,000,000 seconds per million years. That is 31 quadrillion seconds per million years.

**31,556,926,000,000,000 seconds per billion years**. That is 31.55 quintillion seconds per billion years.

**13.8 times 31,556,926,000,000,000** (seconds per billion years) is 435,485,578,800,000,000. That is 435.48 quintillion seconds.

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