I'm a Billion Seconds Old

[matt_arnold]

netmouse's dad told her that she'll be a billion seconds old in August. That means I'll be a billion seconds old sometime in February. I would like to calculate when that would be, so that if scheduling permits I can throw a Billionth-Second party this month. I was born at two in the morning on June 17, 1974. Is there a website that will calculate it for

Comments

[murphyw]

http://www.timeanddate.com/date/birthday.html

and if you google "1 billion seconds in years" you get a rough result of 31.689 years.

[matt_arnold]

Thanks!

[matt_arnold]

Thursday, February 23, 2006 is the day on which my one billionth birthsecond falls! OK, now to check with phecda and cosette_valjean if it's OK to have a party that day.

[phecda]

Here's a methodology --

number_of_days = (2005 - 1974 * 365) + ((2006 - 1974) / 4) - (31 + 28 + 31 + 30 + 31 + 16) + (31)
/* How many days old are you right now? This gives you the number of days since Jan 1 1974 + plus the number of leap years - the Julian number of days until you were born + the current number of Julian days of the current year */

But what you really want is when you'll be a billion seconds, so lets see how many days a billion seconds is:

minutes = 1,000,000,000 / 60 = 16,666,666 min 40 secs
hours = 16,666,666 / 60 = 277,777 hr 46 min 40 sec
days = 277,777 / 24 = 11,574 days 1 hr 46 min 40 sec
years = 11,574 / 365 = 31 years, 259 days, 1 hr 46min 40 sec

So 259 days from June 17 (Julian date is 31 + 28 + 31 + 30 + 31 + 17 = 158)
Day offset = 365 - 158 = 207 days
Day offset 2 = 259 - 207 = 42 days

Your Billion second birthtime = Feb 11th, 2006 at 03:46:40

Someone may want to check my math/assumptions, as I may be a day off, and I don't have time to check my work.

[matt_arnold]

Did that take leap days into account?

[phecda]

Probably not, now that I look at it, but that would shift the date to Feb 3rd, So not sure where the missing 20 days are.

[phecda]

OK, found two math errors -- Remainder days should be 251 (neglected the 8 leap days), and the ofset days should have been 168. That makes the offset into 2006 54 days, which is Feb 23rd. I'm happier now that I found my error.

So, that's a Thursday. It should be OK for a party, as long as you don't go too late. Just as long as you don't have the party at 3:46 am.

[flutterby68]

All that math stuff makes my head hurt!! LOL

[zpgf]

HUH? ? ? ? Oh here comes the math headache! ! !