diff --git a/hadoop-common-project/hadoop-common/src/main/conf/log4j.properties b/hadoop-common-project/hadoop-common/src/main/conf/log4j.properties
index 95afc6167e5..b8c84e7b302 100644
--- a/hadoop-common-project/hadoop-common/src/main/conf/log4j.properties
+++ b/hadoop-common-project/hadoop-common/src/main/conf/log4j.properties
@@ -73,7 +73,7 @@ log4j.appender.DRFA.layout.ConversionPattern=%d{ISO8601} %p %c: %m%n
 log4j.appender.console=org.apache.log4j.ConsoleAppender
 log4j.appender.console.target=System.err
 log4j.appender.console.layout=org.apache.log4j.PatternLayout
-log4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss} %p %c{2}: %m%n
+log4j.appender.console.layout.ConversionPattern=%d{ISO8601} %p %c{2}: %m%n
 
 #
 # TaskLog Appender
@@ -227,7 +227,7 @@ log4j.appender.JSA.File=${hadoop.log.dir}/${hadoop.mapreduce.jobsummary.log.file
 log4j.appender.JSA.MaxFileSize=${hadoop.mapreduce.jobsummary.log.maxfilesize}
 log4j.appender.JSA.MaxBackupIndex=${hadoop.mapreduce.jobsummary.log.maxbackupindex}
 log4j.appender.JSA.layout=org.apache.log4j.PatternLayout
-log4j.appender.JSA.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss} %p %c{2}: %m%n
+log4j.appender.JSA.layout.ConversionPattern=%d{ISO8601} %p %c{2}: %m%n
 log4j.logger.org.apache.hadoop.mapred.JobInProgress$JobSummary=${hadoop.mapreduce.jobsummary.logger}
 log4j.additivity.org.apache.hadoop.mapred.JobInProgress$JobSummary=false