`let oneDay = 24 * 60 * 60 * 1000;`
... to represent the number of milliseconds in a day, then you should find some use for this library, after all.
Test it out and tell me what you think about it! If not, that's okay too. Have a good one!
NPM: https://www.npmjs.com/package/utils.time Source: https://github.com/yeskunall/utils.time