Unix Epoch and PHP's calendar system
I just saw a commit flying past as a response to PHP bug #50155. While right now it is proper to define the Unix Epoch at "1970-01-01 00:00:00 UTC", UTC wasn't actually defined until 1972. So it would be more correct to define the Unix Epoch as "the number of seconds elapsed since midnight proleptic Coordinated Universal Time (UTC) of January 1, 1970, not counting leap seconds." (from Wikipedia). What the bit "not counting leap seconds" means, I've already explained before in Leap Seconds and What To Do With Them.
Similarly, PHP's internal calendar is the ISO 8601 calendar. This is a modification of the proleptic Gregorian calendar. The Gregorian calendar implements the current set of leap years every 4 years, but not every 100 years, but again every 400 years (to get to an average year length of 365.2425 days). Obviously this calendar is only in use since 1582 (some countries adopted it as late as the 1900s), so using days like 1066-10-14 in the Gregorian calendar makes little sense because that calendar didn't exist back then. Now, PHP's ISO 8601-based calendar even modifies the Gregorian calendar by including the year 0. The Gregorian calendar goes straight from -1 to 1 which is a pain to do proper date calculations with. Therefore the ISO 8601 calendar uses Astronomical year numbering.
Life Line
Updated a gate
Staring Contest with a Squirrel
On my walk on the weekend, I sat down on a tree branch of a tree that had fallen over some time ago. Just listening to the birds.
Then after hearing rustling in the foliage above me, I looked up, and saw this chap staring at me.
#London #Photography #Nature #HampsteadHeath
Bluebell Carpet
I had a lovely walk on Hampstead Heath yesterday, finding all the nooks and crannies away from the busy paths.
This field of bluebells under the colourful tree was a stand-out quiet spot.
#London #Photography #Nature #HampsteadHeath
I walked 2.3km in 21m51s
Fix paths
Created a memorial
Created a bench
@Edent Seems like my Android stopped sending coordinates to @openbenches as well, which is surprising as I haven't updated anything as far as I'm aware. Could it be a problem with the reader in your side after the latest changes and the addition of the warning?
I walked 5.8km in 2h15m45s
I walked 1.7km in 17m46s
I walked 4.8km in 1h39m40s
Add the new Queen Elizabeth II garden.
Updated a bench and a crossing; Deleted 2 kerbs
Created 3 gates and a waste_basket
Created 6 benches
Created a bench; Updated 4 benches
Created 2 benches and a bicycle_parking; Updated a telephone and a waste_basket
I walked 10.3km in 2h34m24s
Updated 2 restaurants and an address; Confirmed a restaurant and a fitness_centre
Updated a restaurant
Merged pull request #1077
PHP 8.6: Add new PHP version to Linux jobs for GitHub Actions
PHP 8.6: Switch INI_STR macros to zend_ini_string_literal
I walked 7.1km in 1h28m55s
Added the new Carlton Dene building (nearing completion)
Shortlink
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