Who logged in particular time frame

Question

I have my query below. I want to find out who logged in particuler time frame. Please help.
set linesize 80
ttitle "Current Oracle Users"
column fname new_value _fname
column pu format a8 heading 'O/S|Login|ID' justify left
column su format a20 heading 'Oracle|User ID' justify left
column stat format a8 heading 'Session|Status' justify left
column ssid format 999999 heading 'Oracle|Session|ID' justify right
column sser format 999999 heading 'Oracle|Serial|No' justify right
column ppid format 999999 heading 'Oracle|Process|ID' justify right
column spid format 999999 heading 'UNIX|Process|ID' justify right
column txt format a28 heading 'Current Statment' justify center
select 'cu'||to_char(sysdate,'yymmddhhmiss') fname
from dual;
rem spool &_fname
spool who_is_on.lis
select p.username pu,
s.username su,
s.status stat,
s.sid ssid,
s.serial# sser,
p.pid ppid,
lpad(p.spid,7) spid
from v$process p,
v$session s
where p.addr=s.paddr
and s.username is not null
order by 1,2,7
/spool off
exit

Answer 1

Please help with what?
You've told us you have a query, you've told us you want to know the logon time, you haven't told us anything really.
Is the current problem that you need to add s.LOGON_TIME, to your query?
Or is the problem that you expect V$session to keep a complete history for you and it does not?
I'm assuming no one has tried to help you because you haven't really told us the problem you have in any detail.