From cf1d0e710a2083bf6b8ccee8861532a1b1257632 Mon Sep 17 00:00:00 2001
From: dcshzj <27919917+dcshzj@users.noreply.github.com>
Date: Fri, 12 Apr 2024 10:25:42 +0800
Subject: [PATCH] fix: off-by-one error for month number

---
 src/routes/formsg/formsgSiteAuditLogs.ts | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/routes/formsg/formsgSiteAuditLogs.ts b/src/routes/formsg/formsgSiteAuditLogs.ts
index 717dc892b..ad4e69eb1 100644
--- a/src/routes/formsg/formsgSiteAuditLogs.ts
+++ b/src/routes/formsg/formsgSiteAuditLogs.ts
@@ -81,14 +81,15 @@ export class FormsgSiteAuditLogsRouter {
       const endDateObject = new Date()
       endDateObject.setDate(0)
 
-      startDate = `${startDateObject.getFullYear()}-${startDateObject
-        .getMonth()
+      const startDateMonth = (startDateObject.getMonth() + 1)
         .toString()
-        .padStart(2, "0")}-01`
-      endDate = `${endDateObject.getFullYear()}-${endDateObject
-        .getMonth()
+        .padStart(2, "0")
+      const endDateMonth = (endDateObject.getMonth() + 1)
         .toString()
-        .padStart(2, "0")}-${endDateObject.getDate()}`
+        .padStart(2, "0")
+
+      startDate = `${startDateObject.getFullYear()}-${startDateMonth}-01`
+      endDate = `${endDateObject.getFullYear()}-${endDateMonth}-${endDateObject.getDate()}`
     } else {
       const startDateField = getField(responses, LOGS_TIMEFRAME_START_FIELD)
       const endDateField = getField(responses, LOGS_TIMEFRAME_END_FIELD)