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php Programming Glossary: clockSimple time function to calculate waiting time [closed] http://stackoverflow.com/questions/15613783/simple-time-function-to-calculate-waiting-time this validate arrival time date_time date 'Y m d H i sa' clock time date_default_timezone_set 'Europe London' the_time1 date.. London' the_time1 date 'G ia' waiting time would be the clock time the arrival time However this isn't working in my piece..
How to store repeating dates keeping in mind Daylight Savings Time http://stackoverflow.com/questions/19626177/how-to-store-repeating-dates-keeping-in-mind-daylight-savings-time makes more sense than UTC. The main argument is the alarm clock problem . If you set your alarm clock by UTC you'll be waking.. is the alarm clock problem . If you set your alarm clock by UTC you'll be waking up an hour early or late on the day.. DST transitions. This is why most folks set their alarm clocks by local time. Of course you can't just store a local time..
Calculating the time difference in an PHP/MySQL/JavaScript system http://stackoverflow.com/questions/2020517/calculating-the-time-difference-in-an-php-mysql-javascript-system the server time and not the time in JavaScript because the clock of the user can be off. strtotime date H i s _SERVER 'REQUEST_TIME'..
Can I use a fingerprint scanner on my website? http://stackoverflow.com/questions/4169678/can-i-use-a-fingerprint-scanner-on-my-website is that it's like a login system Sort of like how you can clock in and out if you get paid hourly The idea is that no one can..
Generate random 5 characters string http://stackoverflow.com/questions/5438760/generate-random-5-characters-string seed 5 as k rand . seed k Example And for one based on the clock fewer collisions since it's incremental function incrementalHash..
http://stackoverflow.com/questions/5768380/php-mysql-and-time-zones timezones under the blind assumption that the user's clock is right. Let's compare this method to doing it yourself. You'd..
Automatically detect user's current local time with JavaScript or PHP http://stackoverflow.com/questions/863474/automatically-detect-users-current-local-time-with-javascript-or-php user's ISP Client side code is based on the user's system clock which is too easily manipulated Key questions Is it necessary.. location Can the ISP time be an accurate guide Users OS clocks can vary or be modified by users Examples Countdown Only 1.. to go Issue seconds to go based on what The user's OS clock the hosts server time plus or minus offset ISP system time...
How can I easily convert dates from UTC via PHP? http://stackoverflow.com/questions/952975/how-can-i-easily-convert-dates-from-utc-via-php savings etc . Configuring CentOS Edit etc sysconfig clock and set ZONE to UTC ln sf usr share zoneinfo UTC etc localtime..
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