Space out SiaB jobs better

Change-Id: I9a949687e3298e8ae8a6c0ac79bbb270215bc3a5
diff --git a/jjb/siab.yaml b/jjb/siab.yaml
index 449c193..ffb9550 100644
--- a/jjb/siab.yaml
+++ b/jjb/siab.yaml
@@ -60,7 +60,7 @@
     triggers:
        - timed: |
                  TZ=America/Los_Angeles
-                 0 */2 * * *
+                 0 0,3,6,9,12,15,18,21 * * *
 
 - job-template:
     id: 'siab-voltha-1.7'
@@ -110,7 +110,7 @@
     triggers:
        - timed: |
                  TZ=America/Los_Angeles
-                 30 */2 * * *
+                 0 1,4,7,10,13,16,19,22 * * *
 
 - job-template:
     id: 'siab-latest'
@@ -160,7 +160,7 @@
     triggers:
        - timed: |
                  TZ=America/Los_Angeles
-                 59 */2 * * *
+                 0 2,5,8,11,14,17,20,23 * * *
 
 
 - job-template: