I know that this is a funny question to ask. But did anyone come across such technology, Cisco has timed based ACL, but do they have time based vlan membership for switch?
AFAIK this is not supported.
however there are as always workarounds.
What you can do is per port vlan and trap the link up, and through a script set the vlan of that swichport if you want a vlan to be X minutes from linkup.
If you want the Vlans to be at a certain time ie from 08:00 AM to 05:30 PM it should belong to vlan 2 and between 05:31 PM to 07:59 AM the next day you could use the kron and a small tcl script to set the ports at that time.
good luck hth
This can easily be achieved through EEM. USing time based event mode, we can simply specify which vlan(s) to create at which time and which ports to assign to them.