diff --git a/README.md b/README.md
index 531b2d7..5f0541f 100644
--- a/README.md
+++ b/README.md
@@ -13,19 +13,20 @@ chmod +x /root/proxmox-autosnap/proxmox-autosnap.py
 
 ## Help
 
-| Arguments      | Required | Type | Default | Description                                                      |
-|----------------|----------|------|---------|------------------------------------------------------------------|
-| vmid           | yes      | list | empty   | Space separated list of CT/VM ID or `all` for all CT/VM in node. |
-| snap           | yes      | bool | false   | Create a snapshot but do not delete anything.                    |
-| autosnap       | no       | bool | false   | Create a snapshot and delete the old one.                        |
-| keep           | no       | int  | 30      | The number of snapshots which should will keep.                  |
-| label          | no       | str  | daily   | One of `hourly`, `daily`, `weekly`, `monthly`.                   |
-| clean          | no       | bool | false   | Delete all or selected autosnapshots.                            |
-| exclude        | no       | list | empty   | Space separated list of CT/VM ID to exclude from processing.     |
-| mute           | no       | bool | false   | Output only errors.                                              |
-| running        | no       | bool | false   | Run only on running vm, skip on stopped.                         |
-| includevmstate | no       | bool | false   | Include the VM state in snapshots.                               |
-| dryrun         | no       | bool | false   | Do not create or delete snapshots, just print the commands.      |
+| Arguments       | Required | Type | Default | Description                                                      |
+|-----------------|----------|------|---------|------------------------------------------------------------------|
+| vmid            | yes      | list | empty   | Space separated list of CT/VM ID or `all` for all CT/VM in node. |
+| snap            | yes      | bool | false   | Create a snapshot but do not delete anything.                    |
+| autosnap        | no       | bool | false   | Create a snapshot and delete the old one.                        |
+| keep            | no       | int  | 30      | The number of snapshots which should will keep.                  |
+| label           | no       | str  | daily   | One of `hourly`, `daily`, `weekly`, `monthly`.                   |
+| clean           | no       | bool | false   | Delete all or selected autosnapshots.                            |
+| exclude         | no       | list | empty   | Space separated list of CT/VM ID to exclude from processing.     |
+| mute            | no       | bool | false   | Output only errors.                                              |
+| running         | no       | bool | false   | Run only on running vm, skip on stopped.                         |
+| includevmstate  | no       | bool | false   | Include the VM state in snapshots.                               |
+| dryrun          | no       | bool | false   | Do not create or delete snapshots, just print the commands.      |
+| date-iso-format | no       | bool | false   | Store snapshots in ISO 8601 format.                              |
 
 > proxmox-autosnap.py --help
 
@@ -52,6 +53,11 @@ proxmox-autosnap.py --snap --vmid all --label hourly
 
 # Delete all hourly autosnapshots for all VM
 proxmox-autosnap.py --clean --vmid all --label hourly --keep 0
+
+# Create snapshots in ISO 8601 format
+# Example autodaily_2023_03_22T01_26_23
+# It is not necessary to specify the --date-iso-format argument to delete snapshots 
+proxmox-autosnap.py --snap --vmid 100 --date-iso-format
 ```
 
 ## Cron