Hello @Aswin Antony
Welcome to Microsoft Q&A Platform,
Azure hosts are synchronized to internal Microsoft time servers. If you want to have your own NTP server you will have to create and configure it manually:
https://learn.microsoft.com/en-us/azure/virtual-machines/windows/time-sync
https://learn.microsoft.com/en-us/azure/virtual-machines/linux/time-sync
https://learn.microsoft.com/en-us/azure/virtual-machines/windows/time-sync
I hope this helps!
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