I am by no means experienced in this area, but a quick search of MDN showed the &#x27;timeupdate&#x27; event[1]. Is that not sufficient for the usecase you gave? The timestamp itself is available through the &#x27;currentTime&#x27; property[2] so you can always have that value as well.<p>[1] <a href="https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;docs&#x2F;Web&#x2F;Events&#x2F;timeupdate" rel="nofollow">https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;docs&#x2F;Web&#x2F;Events&#x2F;timeupda...</a><p>[2] <a href="https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;docs&#x2F;Web&#x2F;API&#x2F;HTMLMediaElement&#x2F;currentTime" rel="nofollow">https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;docs&#x2F;Web&#x2F;API&#x2F;HTMLMediaEl...</a><p>Edit: Added links for quick reference.