TicksToDateTime (Azure Cosmos DB)TicksToDateTime (Azure Cosmos DB)
适用于：
SQL API
将指定的时钟周期值转换为日期/时间。Converts the specified ticks value to a DateTime.
语法Syntax
TicksToDateTime (<Ticks>)
参数Arguments
TicksTicks
一个有符号的数值，即自 Unix 时间以来 100 纳秒时钟周期的当前数字。A signed numeric value, the current number of 100 nanosecond ticks that have elapsed since the Unix epoch. 换句话说，它是自 1970 年 1 月 1 日星期四 00:00:00 以来 100 纳秒时钟周期的数字。In other words, it is the number of 100 nanosecond ticks that have elapsed since 00:00:00 Thursday, 1 January 1970.
返回类型Return types
以 YYYY-MM-DDThh:mm:ss.fffffffZ 格式返回 UTC 日期和时间 ISO 8601 字符串值，其中：Returns the UTC date and time ISO 8601 string value in the format YYYY-MM-DDThh:mm:ss.fffffffZ where:
| 格式Format | 描述Description |
|---|---|
| YYYYYYYY | 四位数的年份four-digit year |
| MMMM | 两位数的月份（01 = 1 月，依此类推。）two-digit month (01 = January, etc.) |
| DDDD | 两位数的月份日期（01 到 31）two-digit day of month (01 through 31) |
| TT | 时间元素开头的符号signifier for beginning of time elements |
| hhhh | 两位数的小时（00 到 23）two-digit hour (00 through 23) |
| MMmm | 两位数的分钟（00 到 59）two-digit minutes (00 through 59) |
| ssss | 两位数的秒（00 到 59）two-digit seconds (00 through 59) |
| .fffffff.fffffff | 七位数的小数秒seven-digit fractional seconds |
| ZZ | UTC（协调世界时）指示符UTC (Coordinated Universal Time) designator |
备注Remarks
如果指定的时钟周期值无效，TicksToDateTime 将返回 undefined。TicksToDateTime will return undefined if the ticks value specified is invalid.
示例Examples
以下示例将时钟周期转换为日期/时间：The following example converts the ticks to a DateTime:
SELECT TicksToDateTime(15943368134575530) AS DateTime
[
{
"DateTime": "2020-07-09T23:20:13.4575530Z"
}
]