Recently, I fixed a cross-Time Zone bug in the project. To fix this bug, it really takes a lot of effort. It seems that the main reason is that the development tasks do not involve this concept in normal times, and the test case for testing the
UTC time & local time (1)
The whole earth is divided into twenty-four time zones, each of which has its own local time. For international radio communication, a unified time is used for the sake of unification, called Universal coordination Time
Each region has its own local time, and the time conversion problem on the Internet and radio communication is particularly prominent. Record here for memo.
The whole earth is divided into twenty-four time zones, each of which has its own local
PHP cross-Time Zone (UTC time) application solution. 1. set the internal time zone of the program to UTC time. (UTC can also be called GMT) PHP settings: date_default_timezone_set (UTC); Yii settings: add timeZoneUTC to configmain. php.
1. set the
1. Set the program's internal time zone to UTC time. (UTC can also be called GMT)
PHP Settings:
Date_default_timezone_set ("UTC");
Yii settings:
Added in config/main.php: ' timeZone ' = ' UTC ',
When this is set, the time that PHP generates is
To solve the problem of PHP cross-time zone, you need to set the internal time zone of the program to UTC time. (UTC can also be called GMT) and store the UTC time in the database. if you are interested, you can understand
1. set the internal time
Because of the recent international go to Oracle on MySQL, this inevitably involves time zone and timestamp issues. Do an experiment and summarize.OracleFirst look at the definition of Oracle Concepts for timestamp:The TIMESTAMP data type is an
1. Set the internal time zone of the program to UTC time. (UTC can also be called GMT) PHP settings:Date_default_timezone_set ("UTC ");Yii settings:Add 'timezone '=> 'utc' to config/main. php ',After this setting, the time generated by PHP is
1. Set the internal time zone of the program to UTC time. (UTC can also be called GMT)
PHP settings:
Date_default_timezone_set ("UTC ");
Yii settings:
Add 'timezone '=> 'utc' to config/main. php ',
After this setting, the time generated by PHP is
About GMT and UTCFirst, IntroductionMany people know that the two-way schedule is referred to as GMT or UTC, and the World Time Zone table is referred to as universal, so what is the actual intent of GMT and UTC? How is the world time zone
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