Rotate

const initNode = canvas.node('clock').add({
    size: 50,
    labels: { 0: { remove: true } }
})

initNode.labels(['h', 's']).add({
    color: 'white',
    size: 12,
    radius: 0,
    angle: 90,
    align: 'bottom-middle',
    rotate: true
})
initNode.labels(['h', 's'])
    .data(['/\\\n|', '/\\\n|\n|'])
    .text(t => t)

const labelIds = Array(12).fill(0).map((n, i) => i + 1)
initNode.labels(labelIds).data(labelIds).add({
    text: n => n,
    angle: n => (n - 3) * -30,
    rotate: true
})

canvas.pause(0.3)
for (let i of labelIds) {
    for (let j of labelIds) {
        canvas.pause(0.2)
        canvas.node('clock').label('s')
            .duration(0.2)
            .angle((j - 3) * -30)
    }
    canvas.node('clock').label('h').angle((i - 3) * -30)
}