nemorathwald: (I'm losin' it)
[personal profile] nemorathwald
[livejournal.com profile] 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 me conveniently?

Date: 2006-01-31 03:22 pm (UTC)
From: [identity profile] murphyw.livejournal.com
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.

Date: 2006-01-31 03:47 pm (UTC)

Date: 2006-01-31 03:45 pm (UTC)
From: [identity profile] matt-arnold.livejournal.com
Thursday, February 23, 2006 is the day on which my one billionth birthsecond falls! OK, now to check with [livejournal.com profile] phecda and [livejournal.com profile] cosette_valjean if it's OK to have a party that day.

Date: 2006-01-31 03:48 pm (UTC)
From: [identity profile] phecda.livejournal.com
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.




Date: 2006-01-31 04:17 pm (UTC)
From: [identity profile] matt-arnold.livejournal.com
Did that take leap days into account?

Date: 2006-01-31 04:51 pm (UTC)
From: [identity profile] phecda.livejournal.com
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.

Date: 2006-01-31 05:00 pm (UTC)
From: [identity profile] phecda.livejournal.com
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.

Date: 2006-01-31 05:04 pm (UTC)
From: [identity profile] phecda.livejournal.com
Corrected algorithm below:

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) - 8 = 31 years, 259 days, 1 hr 46min 40 sec

So 259 days from June 17 (Julian date is 31 + 28 + 31 + 30 + 31 + 17 = 168)
Day offset = 365 - 168 = 197 days
Day offset 2 = 251 - 197 = 54 days

Your Billion second birthtime = Feb 23rd, 2006 at 03:46:40

Date: 2006-01-31 04:19 pm (UTC)
From: [identity profile] matt-arnold.livejournal.com
This site let me put the start date and the end date in and told me how long it was between them. It agrees with the other site.

Date: 2006-01-31 07:17 pm (UTC)
From: [identity profile] flutterby68.livejournal.com
All that math stuff makes my head hurt!! LOL

Date: 2006-01-31 07:19 pm (UTC)
From: [identity profile] zpgf.livejournal.com
HUH? ? ? ? Oh here comes the math headache! ! !

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