Compute msec since the Unix Epoch
    
     
    h2o.mktime(year = 1970, month = 0, day = 0, hour = 0, minute = 0,
  second = 0, msec = 0)
    
    Arguments
    
    
    
      | year | Defaults to 1970 | 
    
      | month | zero based (months are 0 to 11) | 
    
      | day | zero based (days are 0 to 30) | 
    
      | hour | hour | 
    
      | minute | minute | 
    
      | second | second | 
    
      | msec | msec |