(bÄt) n. 1. An agreement usually between two parties that the one who has made an incorrect prediction about an uncertain outcome will forfeit something stipulated to the other; a wager: made a bet that it would stop raining before 2:00. 2. An amount or object risked in a wager; a stake: a bet of $50.
1 billion seconds is a significant birthday or anniversary, being about 4 months shy of 32 years. 1 billion seconds is 31 years, 251 days, 13 hours, 34 minutes, 54.7843 seconds. But note that these are 365-day years, so you have to adjust for leap years. Remember, a leap year adds 1 day at the end of February on years that are divisible by 4, unless they're also divisble by 100, except when it's also divisible by 400.
1,000,000,000 = one billion. 1,000,000,000,000 = one trillion. A million is equal to a thousand thousands (1,000 x 1,000). A billion is equal to a thousand millions (1,000 x 1,000,000). A trillion is equal to a thousand billions (1,000 x 1,000,000,000) or a million millions (1,000,000 x 1,000,000). If you count backward, then: 1 million seconds = 12 days ago.