diff --git a/nixos/modules/tasks/filesystems/zfs.nix b/nixos/modules/tasks/filesystems/zfs.nix
index 30c54ddd0e4..50cf30cc48d 100644
--- a/nixos/modules/tasks/filesystems/zfs.nix
+++ b/nixos/modules/tasks/filesystems/zfs.nix
@@ -452,7 +452,7 @@ in
                               }) snapshotNames);
 
       systemd.timers = let
-                         timer = name: if name == "frequent" then "*:15,30,45" else name;
+                         timer = name: if name == "frequent" then "*:0,15,30,45" else name;
                        in builtins.listToAttrs (map (snapName:
                             {
                               name = "zfs-snapshot-${snapName}";