Shell Programming and Scripting

i have the process:
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pipe 7151638 1482862 5 12:17:13 - 21:05 java -D_AppName=DBSyncControllerRerun com.eMeter.dbsync.server.DBSyncServer /home/pipe/conf/appProperties/DBSyncControllerRerun.properties

pipe 1749064 983078 0 04:17:44 pts/1 0:00 grep java
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and the script
#!/bin/ksh

for i in DBSyncControllerRerun
do
a=0
a=`date +"%T"`
ps -aef | grep java | grep $a >> dates
done

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i want to grip the process using time as 12:17:13. but this script not able to function properly,,,,,,,,,,,,,,,.this time is the strating time of that process.
the o/p of this its showing is

pipe 1749064 983078 0 04:17:44 pts/1 0:00 grep java

but i want this o/p

pipe 7151638 1482862 5 12:17:13 - 21:05 java -D_AppName=DBSyncControllerRerun com.eMeter.dbsync.server.DBSyncServer /home/pipe/conf/appProperties/DBSyncControllerRerun.properties

A useful debug method is to echo the variables (eg. echo "$a"), so you can see what they actually are.
Alternatively, you can run your script with the shell "-x" option (eg. sh -x myscript).