diff --git a/client/CHANGELOG.md b/client/CHANGELOG.md
index 8dc9a9a..1221d36 100644
--- a/client/CHANGELOG.md
+++ b/client/CHANGELOG.md
@@ -16,8 +16,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+* Make start_time and stop_time compatible with OpenBSD
+
 ### Security
 
 ## [22.03]
 
-Split client and server parts of the project
\ No newline at end of file
+Split client and server parts of the project
diff --git a/client/zzz_evobackup b/client/zzz_evobackup
index 20b619c..09234d2 100755
--- a/client/zzz_evobackup
+++ b/client/zzz_evobackup
@@ -505,8 +505,13 @@ fi
 
 STOP_EPOCH=$(/bin/date +%s)
 
-start_time=$(/bin/date --date="@${START_EPOCH}" +"${DATE_FORMAT}")
-stop_time=$(/bin/date --date="@${STOP_EPOCH}" +"${DATE_FORMAT}")
+if [ "${SYSTEM}" = "openbsd" ]; then
+    start_time=$(/bin/date -f "%s" -j "${START_EPOCH}" +"${DATE_FORMAT}")
+    stop_time=$(/bin/date -f "%s" -j "${STOP_EPOCH}" +"${DATE_FORMAT}")
+else
+    start_time=$(/bin/date --date="@${START_EPOCH}" +"${DATE_FORMAT}")
+    stop_time=$(/bin/date --date="@${STOP_EPOCH}" +"${DATE_FORMAT}")
+fi
 duration=$(( STOP_EPOCH - START_EPOCH ))
 
 log "STOP GLOBAL - start='${start_time}' stop='${stop_time}' duration=${duration}s"