Mysql Datetime Utc

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Applies to: SQL Server (all supported versions) Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Parallel Data Warehouse

Returns the current database system timestamp as a datetime value. The database time zone offset is not included. This value represents the current UTC time (Coordinated Universal Time). This value is derived from the operating system of the computer on which the instance of SQL Server is running.

ADDDATE(date,INTERVAL expr unit), ADDDATE(expr,days) When invoked with the INTERVAL form.

MySQL converts TIMESTAMP values from the current time zone to UTC for storage, and back from UTC to the current time zone for retrieval. (This does not occur for other types such as DATETIME, which is stored “as is”.) By default, the current time zone for each connection is the server’s time. UTCTIMESTAMP function. In MySQL, the UTCTIMESTAMP returns the current UTC date and time as a value in 'YYYY-MM-DD HH:MM:SS' or YYYYMMDDHHMMSS.uuuuuu format depending on the usage of the function i.e. In a string or numeric context. Note: Since UTCTIMESTAMP works on current datetime, your output may vary from the output shown. DATE and DATETIME fields In mysql, DATE and DAT E TIME are stored as simple strings. They are also sent and received as strings, without any regard for timezones. The mysql package, however, will. When invoked with the INTERVAL form of the second argument, ADDDATE is a synonym for DATEADD. The related function SUBDATE is a synonym for DATESUB. For information on the INTERVAL unit argument, see the discussion for DATEADD.

Note

SYSDATETIME and SYSUTCDATETIME have more fractional seconds precision than GETDATE and GETUTCDATE. SYSDATETIMEOFFSET includes the system time zone offset. SYSDATETIME, SYSUTCDATETIME, and SYSDATETIMEOFFSET can be assigned to a variable of any of the date and time types.

For an overview of all Transact-SQL date and time data types and functions, see Date and Time Data Types and Functions (Transact-SQL).

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Syntax

Note

To view Transact-SQL syntax for SQL Server 2014 and earlier, see Previous versions documentation.

Return Types

datetime

Remarks

Transact-SQL statements can refer to GETUTCDATE anywhere they can refer to a datetime expression.

GETUTCDATE is a nondeterministic function. Views and expressions that reference this function in a column cannot be indexed.

Examples

The following examples use the six SQL Server system functions that return current date and time to return the date, time or both. The values are returned in series; therefore, their fractional seconds might be different.

Mysql

A. Getting the current system date and time

Mysql Datetime Utc

B. Getting the current system date

C. Getting the current system time

See Also

CAST and CONVERT (Transact-SQL)
AT TIME ZONE (Transact-SQL)

The DATE, DATETIME, and TIMESTAMP types are related. This section describes their characteristics, how they are similar, and how they differ. MySQL recognizes DATE, DATETIME, and TIMESTAMP values in several formats, described in Section 9.1.3, “Date and Time Literals”. For the DATE and DATETIME range descriptions, supported means that although earlier values might work, there is no guarantee.

The DATE type is used for values with a date part but no time part. MySQL retrieves and displays DATE values in 'YYYY-MM-DD' format. The supported range is '1000-01-01' to '9999-12-31'.

The DATETIME type is used for values that contain both date and time parts. MySQL retrieves and displays DATETIME values in 'YYYY-MM-DD hh:mm:ss' format. The supported range is '1000-01-01 00:00:00' to '9999-12-31 23:59:59'.

The TIMESTAMP data type is used for values that contain both date and time parts. TIMESTAMP has a range of '1970-01-01 00:00:01' UTC to '2038-01-19 03:14:07' UTC.

A DATETIME or TIMESTAMP value can include a trailing fractional seconds part in up to microseconds (6 digits) precision. In particular, any fractional part in a value inserted into a DATETIME or TIMESTAMP column is stored rather than discarded. With the fractional part included, the format for these values is 'YYYY-MM-DD hh:mm:ss[.fraction]', the range for DATETIME values is '1000-01-01 00:00:00.000000' to '9999-12-31 23:59:59.999999', and the range for TIMESTAMP values is '1970-01-01 00:00:01.000000' to '2038-01-19 03:14:07.999999'. The fractional part should always be separated from the rest of the time by a decimal point; no other fractional seconds delimiter is recognized. For information about fractional seconds support in MySQL, see Section 11.2.6, “Fractional Seconds in Time Values”.

The TIMESTAMP and DATETIME data types offer automatic initialization and updating to the current date and time. For more information, see Section 11.2.5, “Automatic Initialization and Updating for TIMESTAMP and DATETIME”.

MySQL converts TIMESTAMP values from the current time zone to UTC for storage, and back from UTC to the current time zone for retrieval. (This does not occur for other types such as DATETIME.) By default, the current time zone for each connection is the server's time. The time zone can be set on a per-connection basis. As long as the time zone setting remains constant, you get back the same value you store. If you store a TIMESTAMP value, and then change the time zone and retrieve the value, the retrieved value is different from the value you stored. This occurs because the same time zone was not used for conversion in both directions. The current time zone is available as the value of the time_zone system variable. For more information, see Section 5.1.15, “MySQL Server Time Zone Support”.

As of MySQL 8.0.19, you can specify a time zone offset when inserting TIMESTAMP and DATETIME values into a table. The offset is appended to the time part of a datetime literal, with no intravening spaces, and uses the same format used for setting the time_zone system variable, with the following exceptions:

  • For hour values less than than 10, a leading zero is required.

  • The value '-00:00' is rejected.

  • Time zone names such as 'EET' and 'Asia/Shanghai' cannot be used; 'SYSTEM' also cannot be used in this context.

Mysql Datetime Default Utc

The value inserted must not have a zero for the month part, the day part, or both parts. This is enforced beginning with MySQL 8.0.22, regardless of the server SQL mode setting.

Mysql Datetime Utc Download

This example illustrates inserting datetime values with time zone offsets into TIMESTAMP and DATETIME columns using different time_zone settings, and then retrieving them:

The offset is not displayed when selecting a datetime value, even if one was used when inserting it.

The range of supported offset values is -13:59 to +14:00, inclusive.

Datetime literals that include time zone offsets are accepted as parameter values by prepared statements.

Invalid DATE, DATETIME, or TIMESTAMP values are converted to the zero value of the appropriate type ('0000-00-00' or '0000-00-00 00:00:00'), if the SQL mode permits this conversion. The precise behavior depends on which if any of strict SQL mode and the NO_ZERO_DATE SQL mode are enabled; see Section 5.1.11, “Server SQL Modes”.

Mysql Datetime Timezone

In MySQL 8.0.22 and later, you can convert TIMESTAMP values to UTC DATETIME values when retrieving them using CAST() with the AT TIME ZONE operator, as shown here:

Mysql Datetime Utc Code

For complete information regarding syntax and additional examples, see the description of the CAST() function.

Mysql Datetime Utc Offset

Be aware of certain properties of date value interpretation in MySQL:

Mysql Datetime Utc

  • MySQL permits a relaxed format for values specified as strings, in which any punctuation character may be used as the delimiter between date parts or time parts. In some cases, this syntax can be deceiving. For example, a value such as '10:11:12' might look like a time value because of the :, but is interpreted as the year '2010-11-12' if used in date context. The value '10:45:15' is converted to '0000-00-00' because '45' is not a valid month.

    The only delimiter recognized between a date and time part and a fractional seconds part is the decimal point.

  • The server requires that month and day values be valid, and not merely in the range 1 to 12 and 1 to 31, respectively. With strict mode disabled, invalid dates such as '2004-04-31' are converted to '0000-00-00' and a warning is generated. With strict mode enabled, invalid dates generate an error. To permit such dates, enable ALLOW_INVALID_DATES. See Section 5.1.11, “Server SQL Modes”, for more information.

  • MySQL does not accept TIMESTAMP values that include a zero in the day or month column or values that are not a valid date. The sole exception to this rule is the special zero value '0000-00-00 00:00:00', if the SQL mode permits this value. The precise behavior depends on which if any of strict SQL mode and the NO_ZERO_DATE SQL mode are enabled; see Section 5.1.11, “Server SQL Modes”.

  • Dates containing 2-digit year values are ambiguous because the century is unknown. MySQL interprets 2-digit year values using these rules:

    • Year values in the range 00-69 become 2000-2069.

    • Year values in the range 70-99 become 1970-1999.

    See also Section 11.2.8, “2-Digit Years in Dates”.