This article provides information on how to synchronize the time in NTP client, which are on different networks, via the routing-instance on QFX5120-48y. 

> set date ntp routing-instance name ntp-server-ip source-address x.x.x.x   

{master:0}

root@QFX> set date ntp routing-instance test 200.0.0.1 source-address 2.2.2.2   

29 Jul 16:53:04 ntpdate[18280]: step time server 200.0.0.1 offset -13334863.494844 sec

{master:0}

root@QFX> show system uptime   

localre:

--------------------------------------------------------------------------

Current time: 2026-07-29 16:53:24 PDT

Time Source: NTP CLOCK 

System booted: 2026-07-29 16:29:15 PDT (00:24:09 ago)

Protocols started: 2026-07-29 16:30:37 PDT (00:22:47 ago)

Last configured: 2026-07-29 16:49:31 PDT (00:03:53 ago) by root

 4:53PM up 24 mins, 1 users, load averages: 0.25, 0.25, 0.20