diff --git a/pacman-zfs-snapshot.sh b/pacman-zfs-snapshot.sh
index f665d40..0bf380d 100755
--- a/pacman-zfs-snapshot.sh
+++ b/pacman-zfs-snapshot.sh
@@ -106,6 +106,36 @@ function write_pkg_list_oneline () {
     fi
 }
 
+function find_max_dataset_name_length () {
+    local longest_op_suffix op_suffix_string
+    longest_op_suffix='0'
+    for op_suffix in "${snap_op_installation_suffix}" "${snap_op_remove_suffix}" "${snap_op_upgrade_suffix}"; do
+        if [[ "${#op_suffix}" -gt "${longest_op_suffix}" ]]; then
+            longest_op_suffix="${#op_suffix}"
+        fi
+    done
+    op_suffix_string="$(head -c "${longest_op_suffix}" '/dev/zero' | tr '\0' '_')"
+
+    local longest_sev_suffix sev_suffix_string
+    longest_sev_suffix='0'
+    for sev_suffix in "${snaps_trivial_suffix}" "${snaps_important_suffix}"; do
+        if [[ "${#sev_suffix}" -gt "${longest_sev_suffix}" ]]; then
+            longest_sev_suffix="${#sev_suffix}"
+        fi
+    done
+    sev_suffix_string="$(head -c "${longest_sev_suffix}" '/dev/zero' | tr '\0' '_')"
+
+    local max_dataset_name_length example_date_string dataset_name_no_pkgs
+    max_dataset_name_length='0'
+    example_date_string="$(date +"${snap_date_format}")"
+    for dataset in "${snappable_datasets[@]}"; do
+        dataset_name_no_pkgs="${dataset}"'@'"${snap_name_prefix}${snap_field_separator}${example_date_string}${snap_field_separator}"'op:'"${op_suffix_string}${snap_field_separator}"'sev:'"${sev_suffix_string}${snap_field_separator}"'pkgs:'
+        if [[ "${#dataset_name_no_pkgs}" -gt "${max_dataset_name_length}" ]]; then
+            max_dataset_name_length="${#dataset_name_no_pkgs}"
+        fi
+    done
+}
+
 function main () {
     local pkgs_in_transaction
     pkgs_in_transaction=("${@}")
@@ -131,6 +161,9 @@ function main () {
     local pkg_list_oneline
     write_pkg_list_oneline
 
+    local max_dataset_name_length
+    find_max_dataset_name_length
+
     #for pkg in "${!important_pkgs_in_transaction[@]}"; do
     #    printf -- 'Array item '"'"'%s'"'"' equals '"'"'%s'"'"'\n' "${pkg}" "${important_pkgs_in_transaction[${pkg}]}"
     #done