diff --git a/config/includes.chroot/root/.ciss/check_chrony.sh b/config/includes.chroot/root/.ciss/check_chrony.sh
index 427cf22..fa2c64e 100644
--- a/config/includes.chroot/root/.ciss/check_chrony.sh
+++ b/config/includes.chroot/root/.ciss/check_chrony.sh
@@ -14,7 +14,7 @@ set -Ceuo pipefail
 
 #######################################
 # Minimal leap-second probe for Debian/chrony systems.
-# - Prints kernel leap flags & TAI offset (ΔAT).
+# - Prints kernel leap flags & TAI offset (delta AT).
 # - Reads tzdata's leap-seconds list (authoritative TAI-UTC).
 # - Shows chrony tracking summary (incl. leap status).
 # - Demonstrates 23:59:60 rendering via TZ=right/UTC.
@@ -38,7 +38,7 @@ main() {
     tz_tai="$(awk '{print $2}' <<<"${tz_leap_line}")"
     ts_human="$(awk -F'#' '{gsub(/^[[:space:]]+/, "", $2); print $2}' <<<"${tz_leap_line}")"
 
-    printf "tzdata ΔAT (TAI-UTC): %s s [last change at: %s; NTP ts: %s]\n\n" "${tz_tai:-?}" "${ts_human:-?}" "${tz_ntp:-?}"
+    printf "tzdata delta AT (TAI-UTC): %s s [last change at: %s; NTP ts: %s]\n\n" "${tz_tai:-?}" "${ts_human:-?}" "${tz_ntp:-?}"
 
   else
 
@@ -56,7 +56,7 @@ main() {
 
     if [[ -n "${k_tai:-}" ]]; then
 
-      printf "Kernel-exported ΔAT [tai]: %s s\n" "${k_tai}"
+      printf "Kernel-exported delta AT [tai]: %s s\n" "${k_tai}"
 
     fi
 
@@ -96,8 +96,8 @@ main() {
   printf "\n"
   printf "Hint:\n"
 
-  printf "  • ΔAT (TAI-UTC) should match tzdata and kernel (chrony sets kernel TAI if leapsectz/leapseclist is used).\n"
-  printf "  • For monotonic intervals, apps must use CLOCK_MONOTONIC, not CLOCK_REALTIME.\n"
+  printf "  - delta AT (TAI-UTC) should match tzdata and kernel (chrony sets kernel TAI if leapsectz/leapseclist is used).\n"
+  printf "  - For monotonic intervals, apps must use CLOCK_MONOTONIC, not CLOCK_REALTIME.\n"
 
   return 0
 }
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 734f36a..5857337 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -14,6 +14,7 @@ include_toc: true
 
 ## V8.13.144.2025.10.16
 * **Bugfixes**: [99_local.hardened](../config/includes.chroot/etc/sysctl.d/99_local.hardened)
+* **Updated**:  [check_chrony.sh](../config/includes.chroot/root/.ciss/check_chrony.sh)  
 
 ## V8.13.142.2025.10.14
 * **Updated**: [9999-cdi-starter](../scripts/9999-cdi-starter)