60th birthday

I interrupt this blog for an announcement:

Today, November 20, 2017, is my 60th birthday. 

That means that, as of today, I have survived:

60*365 days + 15 leap-days  =  21,915 days; 

which equals

21,915 * 24  =  525,960  hours

525,960 * 60  = 31,557,600 minutes

31,557,600 * 60 = 1,893,456,000 seconds.

One point eight nine gigaseconds old! Time sure flies.