Question

I have a weird date format in some files I’m parsing. Here are some examples:

1954203
2012320
2010270

The first four digits are the year and the next three digits are day of year. For example, the first date is the 203rd day of 1954, or 7/22/1954.

My questions are:

1. What’s this date format called?
2. Is there a pre-canned way to parse it? I don’t want to reinvent the wheel here.

Edit: Sorry, I forgot to mention my language. PHP.

Answer 1

Try:

$oDate = DateTime::createFromFormat('Yz', 201026);
echo $oDate->format('Y-m-d');