Gigasecond (one billion seconds)
This monday I have celebrated quite an anniversary: one billion seconds since the day I have been born. A Gigasecond, as would say many many characters of sci-fi books about space, where it doesn't make sense to bind the time units to the properties of one specific planet. I'm surprised that anniversaries like that are not wide known and celebrated, after all 1 000 000 000 is quite a round number :)
Here you can calculate when you will become one billion seconds old:
+ 1 Gs = 5.1.2015 12:46:40