Keep counter value to localStorage after page refresh

I have a countdown timer. This timer is called in an ajax call whenever user press a button.
I would like to set timer (countdown) in localStorage and get timer (countdown) after page refresh. Could you please help me to implement this in the below code?

const progressBox = document.getElementById('progress-box')

const activateProgress = (progress) => {

    if (progress.toString().length < 2) {
        progressBox.innerHTML = `<b>0${progress}:00</b>`
        progressBox.innerHTML = `<b>${progress}:00</b>`
    } else {
        progressBox.innerHTML = `<b>${progress}:00</b>`
    }
    
    let minutes = progress - 1
    let seconds = 60
    let displaySeconds
    let displayMinutes
    
    const timer = setInterval(()=>{
        seconds --
        if (seconds < 0) {
            seconds = 59,
            minutes --
        }
        if (minutes.toString().length < 2) {
            displayMinutes = '0' + minutes
        } else {
            displayMinutes = minutes
        }
        if (seconds.toString().length < 2) {
            displaySeconds = '0' + seconds
        } else {
            displaySeconds = seconds
        }
        if (minutes === 0 && seconds === 0) {
            setTimeout(()=>{
                clearInterval(timer)
                alert('Time Over')
            }, 500)
        }
        progressBox.innerHTML = `<b>${displayMinutes}:${displaySeconds}</b>`
    }, 1000)
}

const checkInForms = [...document.getElementsByClassName('checkin-forms')]
checkInForms.forEach(form=> form.addEventListener('submit', e=>{
    e.preventDefault()
    const clickedCheckinId = e.target.getAttribute('data-form-id')
    const clickedCheckinBtn = document.getElementById(`mark-checkin-btn-${clickedCheckinId}`)

    $.ajax({
        type: 'POST',
        url: "checkin/",
        data: {
            'csrfmiddlewaretoken': csrftoken,
            'pk': clickedCheckinId,
        },
        success: function(response){
            console.log(response)
            activateProgress(response.progress)
            localStorage.setItem('progress', response.progress)
        },
        error: function(error){
            console.log(error)
        }
    })
}))

Many Thanks