diff --git a/src/tools/systemd/time.rs b/src/tools/systemd/time.rs
index 2e99e289..c8cc8468 100644
--- a/src/tools/systemd/time.rs
+++ b/src/tools/systemd/time.rs
@@ -181,10 +181,10 @@ pub fn compute_next_event(
                     .find(|d| event.days.contains(WeekDays::from_bits(1<<d).unwrap()))
                 {
                     // try next day
-                    t.add_days(n - day_num, true)?;
+                    t.add_days(n - day_num,)?;
                 } else {
                     // try next week
-                    t.add_days(7 - day_num, true)?;
+                    t.add_days(7 - day_num)?;
                 }
                 continue;
             }
@@ -199,7 +199,7 @@ pub fn compute_next_event(
                     t.set_time(n as libc::c_int, 0, 0)?;
                 } else {
                     // test next day
-                    t.add_days(1, true)?;
+                    t.add_days(1)?;
                 }
                 continue;
             }
diff --git a/src/tools/systemd/tm_editor.rs b/src/tools/systemd/tm_editor.rs
index 4a14a975..b098f1cb 100644
--- a/src/tools/systemd/tm_editor.rs
+++ b/src/tools/systemd/tm_editor.rs
@@ -21,15 +21,13 @@ impl TmEditor {
         Ok(epoch)
     }
 
-    pub fn add_days(&mut self, days: libc::c_int, reset_time: bool) -> Result<(), Error> {
+    /// increases the day by 'days' and resets all smaller fields to their minimum
+    pub fn add_days(&mut self, days: libc::c_int) -> Result<(), Error> {
         if days == 0 { return Ok(()); }
-        if reset_time {
-            self.t.tm_hour = 0;
-            self.t.tm_min = 0;
-            self.t.tm_sec = 0;
-        }
+        self.t.tm_hour = 0;
+        self.t.tm_min = 0;
+        self.t.tm_sec = 0;
         self.t.tm_mday += days;
-        self.t.tm_wday += days;
         self.normalize_time()
     }