Appeals are dismissed on untimeliness grounds with regularity. This opinion, dismissing an untimely appeal, provides analysis that may help you avoid a similar fate. The problem, in short, is failing to appreciate that, while Rule 8.108 of the Rules of Court may extend the deadline to appeal, that rule never extends the deadline beyond 180 days from entry of the judgment. If you can remember only that, it will save you from the fate in Brownstone Lofts, LLC v. Otto Miller (D1d1 May 11, 2021) no. A160616 (non-pub.).
One other thing to try and remember: Once a final order is entered, the trial court loses jurisdiction to hear a motion for reconsideration. That means a postjudgment motion for reconsideration is improper and will not extend the time to appeal.