Is this NTP config is right?

NTP Server Router

clock timezone KSA +3
ntp master
ntp server <ip add for wan interface of this router>
ntp source <ip add for wan interface of this router>
ntp update-calender
ntp logging


NTP Clients Router

clock timezone KSA +3
ntp server <ip add same for Router server ip>
ntp source <ip add for wan interface of this router>
ntp update-calender
ntp logging

NTP Server Router
 
clock timezone KSA +3
ntp master
ntp server <ip add for wan interface of this router>
ntp source <ip add for wan interface of this router>
ntp update-calender
ntp logging
 
 
NTP Clients Router
 
clock timezone KSA +3
ntp server <ip add same for Router server ip>
ntp source <ip add for wan interface of this router>
ntp update-calender
ntp logging

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paintcoAsked:
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memo_tntConnect With a Mentor Commented:
this is a working sample

Master

clock timezone ist 5 30
clock calender-valid
ntp master 8
ntp server 10.1.3.1 prefer
ntp server 10.1.3.2
ntp update-calender

int g0/1
ntp broadcast


Client

it's right
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Istvan KalmarConnect With a Mentor Head of IT Security Division Commented:
Hi,

It seems god, but don't forget the time recurring:
clock summer-time KSA recurring last Sun Mar 2:00 last Sun Oct 3:00

If you want security use ntp authenticate!
Please refer this links:
http://www.cisco.com/en/US/docs/switches/lan/catalyst4840g/12.0_13_wt6_1/configuration/guide/4840ntp.html

Best Regards,
Istvan
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memo_tntConnect With a Mentor Commented:
plz advise status here ??
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