: This article mainly introduces that the GMT + 8 string of the PHP conversion database is the user's local time zone. if you are interested in the PHP Tutorial, refer to it.
Write user time zone into cookie
Php reads and processes user time
GMT is GMT, UTC is the universal Time, GMT and UTC are the same timeBeijing time is East eight district, namely Gmt+8 or utc+8Cst:central Standard Time (CST) is 6 hours behind coordinated Universal time (UTC). This time zone was in use during
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
GMT is utc/gmt time, January 01, 1970 00:00 00 seconds (that is, utc+8 Beijing time January 01, 1970 08:00 00 seconds)The calculation code is as follows:
1 /**2 * Gets the number of seconds from the specified time to GMT3 * UTC: GMT January 01,
UT-World Time
Universal TimeThe world is the earliest time standard.In 1884, the international 1s was defined as the 1/8.64x104 of the daily average length of the year. The time system formed by this standard, called the World, is UT1.The
Time zone DivisionThe whole earth is divided into 24 time zones, each time series has its own local time. At the same time, the local time in each time zone varies by 1 to 23 hours. For example, the local time in London is 8 hours different from
The time in PHP has two formatting functions: Date () and gmdate (), which are described in the official document as follows:
Date-format a local time/date
Gmdate-format a gmt/UTC date/time and return the Greenwich Mean Time (GMT ).
For example, if
Global 24 time Zones Division
The World Time Zone table, which can display time and place names in each of the world's time zones, is more sophisticated and complex than the two-way timetable, and usually the world time zone table's dial will mark
In the actual development process will often need to encapsulate the date type of data in XML or JSON format on the network for transmission, in addition, when the date type of data stored in the SQLite database and then fetched only the date of the
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