why %S returns to future time

[5lave Ots]

hey im using this

    if getPlayerStorageValue(cid, STR) > os.time() then
             local timer = os.date("%H hours, %M minutes, %S seconds", getPlayerStorageValue(cid, STR) - os.time())
                return  'you need to wait '..timer..' to open the quest agaian!'

if pc time and server time os.time() is 1;00
it return it to 3:00 for hours only, minutes and seconds are viewed good, anyway to solve this? using tfs 0.4