ESXI 5.1 and 5.5 - issue on leap second

Hi,

we are having ESXI 5.1 and 5.5 on our LAB.  Our VMs ( RHEL 6.6 & 6.4)   are being Time sync from ESXI host directly . ESXi host are enabled with NTP and connected with our corporate NTP server.

Now, on the day of leap second addition will there be any impact on VMs ?  If esxi host have no impact on leap second but still how there  will be the effect on VMs ?

Linux kernel on RHEL 6.6/6.4 are capable of handling leap second  when they are sync directly with NTP server .  But, not sure when they are getting sync from esxi host.

Can you please put some light on it.