Configuring NTP for time synchronization on Dell PowerConnect switches is similar to that of Cisco iOS, but with the syntax being a little different.

You need privileged console/SSH/telnet access for this to work.

SW#configureSW(config)#sntp unicast client enableSW(config)#sntp server ip-addressSW(config)#no sntp authenticateSW(config)#end

This will set the NTP server's address to whatever you specify (replace ip-address). To verify, you can run these:

show sntp configuration

This will show you the current NTP settings and status:

SW# show sntp configuration

Time zone configuration was missing for a long time, and was only introduced in more recent firmwares. Check on the Dell website  ...