Per @LindsayHill - run weekly build on Sunday and not Saturday.

Kami · Kami · commit 545f55ddb273 · 2019-01-28T22:48:41.000+01:00
diff --git a/.circle/circle.yml.sample b/.circle/circle.yml.sample
@@ -132,8 +132,8 @@ workflows:
     triggers:
       # Run nightly build for the pack
       - schedule:
-          # NOTE: We run it at 1 am UTC on every Saturday
-          cron: "0 1 * * 6"
+          # NOTE: We run it at 1 am UTC on every Sunday
+          cron: "0 1 * * 0"
           filters:
             branches:
               only:
