diff --git a/src/common/datetime/calc_date_range.ts b/src/common/datetime/calc_date_range.ts
index 4371512dae..79a2d729d0 100644
--- a/src/common/datetime/calc_date_range.ts
+++ b/src/common/datetime/calc_date_range.ts
@@ -84,12 +84,12 @@ export const calcDateRange = (
     case "now-7d":
       return [
         calcDate(today, subDays, hass.locale, hass.config, 7),
-        calcDate(today, subDays, hass.locale, hass.config, 1),
+        calcDate(today, subDays, hass.locale, hass.config, 0),
       ];
     case "now-30d":
       return [
         calcDate(today, subDays, hass.locale, hass.config, 30),
-        calcDate(today, subDays, hass.locale, hass.config, 1),
+        calcDate(today, subDays, hass.locale, hass.config, 0),
       ];
     case "now-12m":
       return [