correct and clarify cron schedules

Author: TimidRobot

.github/workflows/fetch.yml

@@ -2,8 +2,8 @@ name: Fetch Data
 
 on:
   schedule:
-    # 1:15am onwards, days 1-20, first month of each quarter
-    - cron: '15 1,5,9,13,17,21,23 1-20 1,4,7,10 *'
+    # at 01:15 on days 1-20 in first month of each quarter
+    - cron: '15 1 1-20 1,4,7,10 *'
   workflow_dispatch:
 
 jobs:

.github/workflows/process.yml.disabled

@@ -2,8 +2,8 @@ name: Process Data
 
 on:
   schedule:
-    # 1:15am onwards, days 1-20, second month of each quarter
-    - cron: '15 1,5,9,13,17,21,23 1-20 2,5,8,11 *'
+    # at 01:15 on days 1-20 in second month of each quarter
+    - cron: '15 1 1-20 2,5,8,11 *'
   workflow_dispatch:
 
 jobs:

.github/workflows/report.yml

@@ -2,11 +2,10 @@ name: Generate Report
 
 on:
   schedule:
-    # 1:15am onwards, days 1-20, third month of each quarter
-    - cron: '15 1,5,9,13,17,21,23 1-20 3,6,9,12 *'
+    # at 01:15 on days 1-20 in third month of each quarter
+    - cron: '15 1 1-20 3,6,9,12 *'
   workflow_dispatch:
 
-
 jobs:
   generate-report:
     runs-on: ubuntu-latest