How can I offset a 5 minute countdown interval timer by 1 minute, using react JS

Question

I am looking to make a 5-minute interval timer in react JS, that's offset by 1 minute.
The timer I have below lands at 1:00 => 1:05 => 1:10 => 1:15 => 1:20.
I need this to be offset to 1:01 => 1:06 => 1:11 => 1:16 => 1:21.
The timer needs to be in-sync with the Los Angeles time-zone.
Looking for the cleanest es7 code if possible.
I am using NextJS framework.
This is the code I have so far.

  const [timer, setTimer] = useState("")

  const secondPassed = useCallback( () => {
    const cur_date = new Date();
    const minutes = cur_date.getMinutes();
    const seconds = cur_date.getSeconds();
    console.log( (4 - minutes % 5) + ":" + (seconds >= 50 ? "0" : "") + (59 - seconds))
    setTimer( `${(4 - minutes % 5) + ":" + (seconds >= 50 ? "0" : "") + (59 - seconds)}` )
  },[])
  
  useEffect(()=>{
    setInterval(secondPassed, 1000)
  },[])

Answer 1

I offset the starting date by 1 minute.

const [timer, setTimer] = useState("")

  const secondPassed = useCallback( () => {
    const cur_date = new Date( Date.now() - 1000 * 60 );
    const minutes = cur_date.getMinutes();
    const seconds = cur_date.getSeconds();
    console.log( (4 - (minutes % 5)) + ":" + (seconds >= 50 ? "0" : "") + (59 - seconds))
    setTimer( `${(4 - (minutes % 5)) + ":" + (seconds >= 50 ? "0" : "") + (59 - seconds)}` )
  },[])
  
  useEffect(()=>{
    const run = setInterval(secondPassed, 5000)
    return () => clearInterval(run)
  },[])