Humans have organized days in different ways. Calendars currently used include gregorian, chinese, hebrew, hindu, islamic, etc. This blog's post contains the date and time it was published by the blog's server in the gregorian calendar. Computers represent dates in different ways. Computers like numbers unlike you and I who prefer readable text. So computers may store dates and times as the number of milliseconds since 1970. Or store years using only the last two digits - e.g. 99 for 1999 and 00 for 1900 and 2000. Yes, you must have heard of the Y2K bug. Just nine years ago we were already wondering if 2000 would be the end of the world as we knew it because some machines might think 2000 came before 1999. Time proved Nature doesn't care all that much how we humans decide to (dis)organize days. Regardless of your favorite calendar, the Sun will still shine for another expected five billions years...
With that in mind, enjoy the show!
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