In the U.S. federal court system, criminal defendants must file a notice of appeal within 10 days of the entry of either the judgment or the order being appealed, or the right to appeal is forfeited.
ɪnðə jˈuː.ˈɛs. fˈɛdɚɹəl kˈoːɹt sˈɪstəm, kɹˈɪmɪnəl dᵻfˈɛndənts mˈʌst fˈaɪl ɐ nˈoʊɾɪs ʌv ɐpˈiːl wɪðˌɪn tˈɛn dˈeɪz ʌvðɪ ˈɛntɹi ʌv ˈiːðɚ ðə dʒˈʌdʒmənt ɔːɹ ðɪ ˈɔːɹdɚ bˌiːɪŋ ɐpˈiːld, ɔːɹ ðə ɹˈaɪt tʊ ɐpˈiːl ɪz fˈɔːɹfɪɾᵻd.