date: fix typo (#4069)

pages.it/common/date.md

@@ -8,7 +8,7 @@
 
 - Mostra la data corrente in UTC e formato ISO 8601:
 
-`date -u +"%Y-%m-%dT%H:%M:%SZ"`
+`date -u +"%Y-%m-%dT%H:%M:%S%Z"`
 
 - Mostra la data corrente come timestamp Unix (secondi dall'epoca Unix):
 

pages.ko/common/date.md

@@ -8,7 +8,7 @@
 
 - 현재 날짜를 UTC 및 ISO 8601 형식으로 표시:
 
-`date -u +"%Y-%m-%dT%H:%M:%SZ"`
+`date -u +"%Y-%m-%dT%H:%M:%S%Z"`
 
 - 현재 날짜를 Unix 타임스탬프로 표시 (Unix epoch 이후 몇 초):
 

pages.zh/osx/date.md

@@ -8,7 +8,7 @@
 
 - 以 UTC 和 ISO 8601 格式显示当前日期:
 
-`date -u +"%Y-%m-%dT%H:%M:%SZ"`
+`date -u +"%Y-%m-%dT%H:%M:%S%Z"`
 
 - 将当前日期显示为 unix 时间戳（自 1970-01-01 00:00:00 以来的秒数）
 

pages/common/date.md

@@ -8,7 +8,7 @@
 
 - Display the current date in UTC and ISO 8601 format:
 
-`date -u +"%Y-%m-%dT%H:%M:%SZ"`
+`date -u +"%Y-%m-%dT%H:%M:%S%Z"`
 
 - Display the current date as a Unix timestamp (seconds since the Unix epoch):
 

pages/osx/date.md

@@ -8,7 +8,7 @@
 
 - Display the current date in UTC and ISO 8601 format:
 
-`date -u +"%Y-%m-%dT%H:%M:%SZ"`
+`date -u +"%Y-%m-%dT%H:%M:%S%Z"`
 
 - Display the current date as a Unix timestamp (seconds since the Unix epoch):