You must synchronize the time on the vRealize Log Insight virtual appliance with an NTP server or with the ESX/ESXi host on which you deployed the virtual appliance.
Time is critical to the core functionality of vRealize Log Insight.
By default, vRealize Log Insight synchronizes time with a pre-defined list of public NTP servers. If public NTP servers are not accessible due to a firewall, you can use the internal NTP server of your company. If no NTP servers are available, you can sync time with the ESX/ESXi host where you have deployed the vRealize Log Insight virtual appliance.
Prerequisites
Verify that you are logged in to the vRealize Log Insight web user interface as a user with the Edit Admin permission. The URL format is https://log-insight-host, where log-insight-host is the IP address or host name of the vRealize Log Insight virtual appliance.