diff --git a/CHANGELOG.md b/CHANGELOG.md
index f6c2676d..c1cb13e3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 # 0.90.66 (09-08-2020)
 - Added Import and Export views in Dashboard
+- Modified services list sparkline to use start/end of day timestamp
 
 # 0.90.65 (09-01-2020)
 - Fixed issue with dashboard not logging in (notifier panic)
diff --git a/frontend/src/components/Service/ServiceSparkList.vue b/frontend/src/components/Service/ServiceSparkList.vue
index eef882c3..5d5f2561 100644
--- a/frontend/src/components/Service/ServiceSparkList.vue
+++ b/frontend/src/components/Service/ServiceSparkList.vue
@@ -153,7 +153,10 @@ export default {
         group = "24h"
       }
 
-      const data = await Api.service_failures_data(this.service.id, this.toUnix(this.nowSubtract(start)), this.toUnix(this.now()), group, true)
+      const startTime = this.beginningOf("day", this.nowSubtract(start))
+      const endTime = this.endOf("day", this.now())
+
+      const data = await Api.service_failures_data(this.service.id, this.toUnix(startTime), this.toUnix(endTime), group, true)
       this.loaded = true
       this.data = [{data: this.convertChartData(data)}]
     }