CTEST_NIGHTLY_START_TIME

.. versionadded:: 3.1

Specify the CTest NightlyStartTime setting in a :manual:ctest(1) :ref:Dashboard Client script, or on the :program:ctest command line via the :ctest-dashboard-option:-D option.

Note that this variable must always be set for a nightly build in a dashboard script. It is needed so that nightly builds can be properly grouped together in CDash.