From f2af4a2804a47fb2805b358fc92a8279d800f731 Mon Sep 17 00:00:00 2001
From: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Date: Mon, 21 Sep 2026 17:23:07 +0000
Subject: [PATCH] Reduce nightly build cadence (#64557)

Reduce the nightly release workflow from six runs per day to two runs
per day, at 02:00 and 14:00 UTC. Update both the workflow generator and
generated workflow.

Validated by regenerating workflows with `cargo xtask workflows`.

Release Notes:

- N/A

---------

Co-authored-by: Amp <amp@ampcode.com>
---
 .github/workflows/release_nightly.yml                | 2 +-
 tooling/xtask/src/tasks/workflows/release_nightly.rs | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/release_nightly.yml b/.github/workflows/release_nightly.yml
index 2ec6a4128e..1652e104b6 100644
--- a/.github/workflows/release_nightly.yml
+++ b/.github/workflows/release_nightly.yml
@@ -6,7 +6,7 @@ env:
   RUST_BACKTRACE: '1'
 on:
   schedule:
-  - cron: 0 */4 * * *
+  - cron: 0 2,14 * * *
   workflow_dispatch: {}
 permissions:
   contents: read
diff --git a/tooling/xtask/src/tasks/workflows/release_nightly.rs b/tooling/xtask/src/tasks/workflows/release_nightly.rs
index 4c18ba2136..2ec04776ec 100644
--- a/tooling/xtask/src/tasks/workflows/release_nightly.rs
+++ b/tooling/xtask/src/tasks/workflows/release_nightly.rs
@@ -49,8 +49,8 @@ pub fn release_nightly() -> Workflow {
     named::workflow()
         .with_minimal_permissions()
         .on(Event::default()
-            // Fire 6 times a day
-            .schedule([Schedule::new("0 */4 * * *")])
+            // Fire twice a day at 02:00 and 14:00 UTC
+            .schedule([Schedule::new("0 2,14 * * *")])
             .workflow_dispatch(WorkflowDispatch::default()))
         .concurrency(
             Concurrency::default()