## Tstamp

### Description

Sets the `DSTAMP`, `TSTAMP`, and `TODAY` properties in the current project. By default, the `DSTAMP` property is in the format "yyyyMMdd", `TSTAMP` is in the format "hhmm", and `TODAY` is in the format "MMMM dd yyyy". Use the nested `<format>` element to specify a different format.

These properties can be used in the build-file, for instance, to create time-stamped filenames, or used to replace placeholder tags inside documents to indicate, for example, the release date. The best place for this task is probably in an initialization target.

### Parameters

Attribute | Description | Required
prefix | Prefix used for all properties set. The default is no prefix. | No

### Nested Elements

The Tstamp task supports a `<format>` nested element that allows a property to be set to the current date and time in a given format. The date/time patterns are as defined in the Java SimpleDateFormat class. The format element also allows offsets to be applied to the time to generate different time values.

Attribute | Description | Required
property | The property to receive the date/time string in the given pattern. | Yes
pattern | The date/time pattern to be used. The values are as defined by the Java SimpleDateFormat class. | Yes
timezone | The timezone to use for displaying time. The values are as defined by the Java TimeZone class. | No
offset | The numeric offset to the current time | No
unit | The unit of the offset to be applied to the current time. Valid Values are millisecond second minute hour day week month year | No
locale | The locale used to create date/time string. The general form is "language, country, variant" but either variant or variant and country may be omitted. For more information please refer to documentation for the Locale class. | No

### Examples

      <tstamp/>

sets the standard `DSTAMP`, `TSTAMP`, and `TODAY` properties according to the default formats.

      <tstamp>
        <format property="TODAY_GB" pattern="d-MMMM-yyyy" locale="en,GB"/>
      </tstamp>

sets the standard properties as well as the property `TODAY_UK` with the date/time pattern "d-MMMM-yyyy" using English locale (eg. 21-May-2001).

      <tstamp>
          <format property="touch.time" pattern="MM/dd/yyyy hh:mm aa"
                  offset="-5" unit="hour"/>
      </tstamp>

Creates a timestamp, in the property touch.time, 5 hours before the current time. The format in this example is suitable for use with the `<touch>` task. The standard properties are set also.

      <tstamp prefix="start"/>

Sets three properties with the standard formats, prefixed with "start.": `start.DSTAMP`, `start.TSTAMP`, and `start.TODAY`.