From 49d53654ba7266a7ec384cf697e3fe02ec1ff9e2 Mon Sep 17 00:00:00 2001
From: Ronnie Dutta <61982285+MetRonnie@users.noreply.github.com>
Date: Thu, 23 Nov 2023 10:30:43 +0000
Subject: [PATCH] Add cheat sheet entry on `rose date` -> `isodatetime` (#670)

---
 src/7-to-8/cheat-sheet.rst | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/src/7-to-8/cheat-sheet.rst b/src/7-to-8/cheat-sheet.rst
index 56de58b99a..8484afca68 100644
--- a/src/7-to-8/cheat-sheet.rst
+++ b/src/7-to-8/cheat-sheet.rst
@@ -260,6 +260,33 @@ Generate a visualisation for a workflow without running it:
 
        The web UI will have full graph vis. in a future release.
 
+Datetime Operations
+-------------------
+
+Datetime operations in task scripts:
+
+.. list-table::
+   :class: grid-table
+
+   * - **Cylc 7** & Rose 2019
+     - **Cylc 8** (Rose 2)
+   * - ::
+
+         rose date <point> --offset <offset>
+     - ::
+
+         isodatetime <point> --offset <offset>
+   * - ::
+
+         rose date -c
+         # equivalent to:
+         rose date "$CYLC_TASK_CYCLE_POINT"
+     - ::
+
+         isodatetime ref
+         # equivalent to:
+         isodatetime "$CYLC_TASK_CYCLE_POINT"
+
 Rose Stem
 ---------