diff --git a/main.go b/main.go
index 695e96e..80a31a5 100644
--- a/main.go
+++ b/main.go
@@ -54,7 +54,7 @@ func main() {
 		versionFlag = flag.Bool("version", false, "Print binary version")
 		month       = flags.Monthlist("month", "1 to 12")
 		weekday     = flags.Weekdaylist("weekday", "mo,tu,we,th,fr,sa,su")
-		day         = flags.Intlist("day", "0 to 31", 0, 31)
+		day         = flags.Intlist("day", "1 to 31", 1, 31)
 		hour        = flags.Intlist("hour", "0 to 23", 0, 23)
 		minute      = flags.Intlist("minute", "0 to 59", 0, 59)
 		second      = flags.Intlist("second", "0 to 59", 0, 59)
diff --git a/readme.md b/readme.md
index 139b7a2..3aea275 100644
--- a/readme.md
+++ b/readme.md
@@ -46,7 +46,7 @@ Thanks to [runwhen](http://code.dogmap.org/runwhen/) for inspiration.
 
     Flags:
       -day value
-          0 to 31
+          1 to 31
       -hour value
           0 to 23
       -minute value
@@ -56,7 +56,7 @@ Thanks to [runwhen](http://code.dogmap.org/runwhen/) for inspiration.
       -second value
           0 to 59
       -silent
-          Surpress all output
+          Suppress all output
       -version
           Print binary version
       -weekday value