LIPEZ, Circuit Judge.

On December 16, 1998, Quebecor Printing Providence, Inc. and Quebecor Printing (USA) Corp. (collectively, "Quebecor") announced the permanent closure of their gravure printing plant in Providence, Rhode Island, effective that same day. Graphic Communications International Union, Local 12-N and Graphic Communications International Union, Local 239-M ("the Unions") filed a lawsuit in the United States District Court for the District of Rhode Island, claiming that Quebecor had violated the Worker Adjustment and Retraining Notification Act ("WARN Act"), 29 U.S.C. § 2102(a), which requires that employers provide 60 days notice of a plant closing. On July 21, 2000, the district court entered judgment pursuant to a memorandum and order granting Quebecor's motion for summary judgment and denying the Unions' cross-motion for summary judgment. The Unions filed a notice of appeal with the district court on August 22, 2000, one day after the 30-day period for filing the notice of appeal had expired. The Unions then moved for an extension of time to file the notice of appeal due to excusable neglect, and the district court denied their motion. The Unions appeal both the denial of that motion and the district court's disposition of the cross-motions for summary judgment. Because the district court acted within its discretion in rejecting the Unions' motion for an extension of time to file the notice of appeal, we affirm that decision, and do not reach the merits of the Unions' WARN Act claim.

I.

The district court decided the summary judgment motions in favor of Quebecor on the merits of the Unions' WARN Act claims in a memorandum and order issued on July 20, 2000, and the clerk entered judgment the next day. Pursuant to Fed.R.App.P. 4(a)(1)(A), the Unions had until August 21, 2000 to file the notice of appeal.

On Thursday, August 17, Peter J. Leff, the Unions' Washington counsel, sent a notice of appeal and a check for the cost via Express Mail to Marc Gursky, the Unions' Providence counsel. Leff telephoned Gursky, either on August 17 or the day before, to alert him to expect the package. Although it was guaranteed to arrive at its destination the morning of Friday, August 18, the Postal Service did not attempt to deliver the package to Gursky's firm until 7:00 a.m. on Saturday, August 19, when no one was there to sign for it. A second delivery attempt was made at 2:14 p.m. on Monday, August 21, and was successful.

The apparent reason for the Postal Services' failure to deliver the package on Friday, August 18 was an incorrect address on the package. In March of 2000, Gursky's firm had relocated within Providence. In preparing the Express Mail package, however, Leff's office copied the old address off a letter Gursky's firm had written before the move.

When the package did arrive at 2:14 p.m. on Monday, August 21, there was still time (until the end of the day) to file the notice of appeal. A secretary at Gursky's firm, Cheryl Dichiara, received the package, and placed it on her desk with the intention of giving it to Gursky when he returned to the office. Dichiara, who was preparing an arbitration brief for another client that was due the next day, lost track of the package under other documents on her desk, and did not give it to Gursky until August 22. The Unions filed the notice of appeal that same day, and informed Quebecor of the error and of their intention to file a motion for extension of time to file the notice of appeal on the ground of excusable neglect, pursuant to Fed.R.App.P. 4(a)(5) (the motion was filed on August 24). At a hearing before the district court the next month, Gursky indicated that, as of August 21, the deadline for filing the notice of appeal, he believed the period for filing the notice of appeal was 60 days, rather than 30.

II.

Under the Federal Rules of Appellate Procedure, with exceptions not relevant here, the notice of appeal "must be filed with the district clerk within 30 days after the judgment or order appealed from is entered." Fed.R.App.P. 4(a)(1)(A). "The district court may extend the time to file a notice of appeal if: (i) a party so moves no later than 30 days after the time prescribed by this Rule . . . expires; and (ii) that party shows excusable neglect or good cause." Fed.R.App.P. 4(a)(5)(A). The Unions argue that while the late filing was not due to forces beyond their control, any neglect on their part was excusable, and that the district court should therefore have granted an extension.

Our review of the district court's interpretation of Fed.R.App.P. 4(a)(5) is de novo, "but otherwise [we] defer to its denial of the requested extension in the absence of an abuse of discretion." Pontarelli v. Stone, 930 F.2d 104, 109 (1st Cir. 1991) (citations omitted).

Before the Supreme Court's decision in Pioneer Investment Services Co. v. Brunswick Associates Limited Partnership, 507 U.S. 380, 113 S.Ct. 1489, 123 L.Ed.2d 74 (1993), the rule in this circuit was that "[n]eglect is excusable within the meaning of FRAP 4(a)(5) only in unique or extraordinary circumstances." Pontarelli, 930 F.2d at 111 (finding no excusable neglect where notice of appeal failed to specify each party taking appeal, as required under Fed.R.App.P. 3(c) (internal quotation marks omitted)); see also Rivera v. Puerto Rico Tel. Co., 921 F.2d 393, 396 (1st Cir. 1990) (attorney's failure to list all plaintiffs on notice of appeal "does not constitute excusable neglect for purposes of Rule 4(a)(5) except in unusual or extraordinary circumstances"); Airline Pilots in the Service of Executive Airlines, Inc. v. Executive Airlines, Inc., 569 F.2d 1174, 1175 (1st Cir. 1978) ("A mistake made by an attorney or his staff [secretary wrote down incorrect deadline for notice of appeal] is not, except in unusual or extraordinary circumstances . . . excusable neglect. . . ."); Spound v. Mohasco Indus., Inc., 534 F.2d 404, 411 (1st Cir. 1976) ("Excusable neglect calls for circumstances that are unique or extraordinary." (internal quotation marks omitted)). We did find excusable neglect in In Re San Juan Dupont Plaza Hotel Fire Litigation, 888 F.2d 940, 941-42 (1st Cir. 1989), but there the circumstances were extraordinary: the failure to name each plaintiff on a notice of appeal stating that "all plaintiffs, through the Plaintiffs' Steering Committee he[re]by appeal," was deemed excusable on the grounds of "the extraordinary size [over 2,000] of the plaintiff group," the representative status of the Plaintiffs' Steering Committee, and the reasonableness of the plaintiffs' filing (which, we suggested, may in fact have complied with Rule (3)(c)). Id. at 942.

In Pioneer the Supreme Court endorsed a more generous reading of the phrase "excusable neglect." The Court interpreted the "excusable neglect" provision in Rule 9006(b)(1) of the Federal Rules of Bankruptcy Procedure, which "empowers a bankruptcy court to permit a late filing if the movant's failure to comply with an earlier deadline 'was the result of excusable neglect.'" 507 U.S. at 382, 113 S.Ct. 1489. Rejecting what it termed a "narrow view of 'excusable neglect,'" under which the failure to meet a deadline had to be "caused by circumstances beyond the movant's control," the Court advanced "a more flexible analysis." Id. at 387 n. 3, 113 S.Ct. 1489. The Court observed that the ordinary meaning of the word "neglect" encompasses not just unavoidable omissions, but also negligent ones, and concluded that "Congress plainly contemplated that the courts would be permitted, where appropriate, to accept late filings caused by inadvertence, mistake, or carelessness, as well as by intervening circumstances beyond the party's control." Id. at 388, 113 S.Ct. 1489.

The Court then identified factors to be weighed in evaluating a claim of excusable neglect:

we conclude that the determination is at bottom an equitable one, taking account of all relevant circumstances surrounding the party's omission. These include . . . the danger of prejudice to the [non-moving party], the length of the delay and its potential impact on judicial proceedings, the reason for the delay, including whether it was within the reasonable control of the movant, and whether the movant acted in good faith.

Id. at 395, 113 S.Ct. 1489. Although the excusable neglect provision interpreted in Pioneer was located in the Bankruptcy Rules, the Court cited a disagreement among the circuits on the meaning of "excusable neglect" in Fed.R.App.P. 4(a)(5) as a reason for granting certiorari. See id. at 387 n. 3, 113 S.Ct. 1489. In Virella-Nieves v. Briggs Stratton Corp., 53 F.3d 451 (1st Cir. 1995), we concluded that " Pioneer's exposition of excusable neglect, though made in the context of late bankruptcy filings, applies equally to Fed.R.App.P. 4(a)(5)." Id. at 454 n. 3; see also Pratt v. Philbrook, 109 F.3d 18, 19 (1st Cir. 1997) (" Pioneer must be understood to provide guidance outside the bankruptcy context.").

We have recognized that Pioneer marked a shift in the understanding of excusable neglect. In Pratt, we vacated the district court's denial of the plaintiff's motion to reopen a case under Fed R. Civ. P. 60(b)(1), and remanded for reconsideration under the "latitudinarian standards" for excusable neglect announced in Pioneer. 109 F.3d at 19. We noted that the Supreme Court had "adopted a forgiving attitude toward instances of 'excusable neglect,' a term Pioneer suggests will be given a broad reading." Id. at 22. In Hospital del Maestro v. National Labor Relations Board, 263 F.3d 173, 174 (1st Cir. 2001) (per curiam), we observed that excusable neglect after Pioneer is "a somewhat elastic concept" (internal quotation marks omitted). Other circuits have come to the same conclusion. See Robb v. Norfolk W. Ry. Co., 122 F.3d 354, 359 (7th Cir. 1997) (" Pioneer broadened the definition of 'excusable neglect.'"); United States v. Thompson, 82 F.3d 700, 702 (6th Cir. 1996) ( Pioneer establishes "a more liberal definition of what constitutes excusable neglect when an individual seeks a motion for an extension of time in the district court under Fed.R.App.P. 4"); Fink v. Union Cent. Life Ins. Co., 65 F.3d 722, 724 (8th Cir. 1995) ( Pioneer "established a more flexible analysis of the excusable neglect standard"); United States v. Hooper, 9 F.3d 257, 258 (2nd Cir. 1993) ( Pioneer advances "a more lenient interpretation" of excusable neglect).

Although the Pioneer standard is more forgiving than the standard in our prior case law, there still must be a satisfactory explanation for the late filing. We have observed that "'[t]he four Pioneer factors do not carry equal weight; the excuse given for the late filing must have the greatest import. While prejudice, length of delay, and good faith might have more relevance in a closer case, the reason-for-delay factor will always be critical to the inquiry. . . .'" Hosp. del Maestro, 263 F.3d at 175 (quoting Lowry v. McDonnell Douglas Corp., 211 F.3d 457, 463 (8th Cir. 2000)). This focus comports with the Pioneer Court's recognition that "inadvertence, ignorance of the rules, or mistakes construing the rules do not usually constitute 'excusable' neglect." 507 U.S. at 392, 113 S.Ct. 1489.

Even in the wake of Pioneer, therefore, when a party's or counsel's misunderstanding of clear law or misreading of an unambiguous judicial decree is the reason for the delay in filing the notice of appeal, we have continued to uphold findings of "no excusable neglect" where the court cited the absence of unique or extraordinary circumstances. In Mirpuri v. ACT Manufacturing, Inc., 212 F.3d 624, 631 (1st Cir. 2000), counsel misread a clear statement in the district court's memorandum decision dismissing plaintiff's complaint "with finality," id. at 627, as leaving open the possibility of subsequent amendment, see id. at 630. We indicated that the memorandum decision had "explained in the most transparent of terms the court's intention to act with 'finality in this case,'" and concluded that "[a] misunderstanding that occurs because a party (or his counsel) elects to read the clear, unambiguous terms of a judicial decree through rose-colored glasses cannot constitute excusable neglect." Id. at 631. We held that "[b]ecause the plaintiffs' failure to file a timely notice of appeal was not excused by any extraordinary circumstances, the district court did not abuse its discretion in denying their motion for an extension of time." Id.

Most recently, in Hospital del Maestro, we affirmed the denial of an excusable neglect claim where appellant had filed exceptions to the decision of an administrative law judge with the National Labor Relations Board one day late. 263 F.3d at 175. Appellant had misunderstood the Board's rule requiring that mailings be postmarked before, not on, the due date. Id. at 174. We held that "[w]e have no basis for finding [appellant's] neglect 'excusable' when there is no proffered reason that would justify, or even plausibly explain, its misreading of the rules," the meaning of which we described as "plain" and "unambiguous." Id. at 175. We concluded: "[t]he favorable juxtaposition of the other Pioneer factors does not, therefore, excuse [appellant's] oversight." Id.

Viewed together, Mirpuri and Hospital del Maestro illustrate that a trial judge has wide discretion in dealing with a litigant whose predicament results from blatant ignorance of clear or easily ascertainable rules, and, if the trial judge decides that such neglect is not excusable in the particular case, we will not meddle unless we are persuaded that some exceptional justification exists. See Mirpuri, 212 F.3d at 631; Hospital del Maestro, 263 F.3d at 175.

Other circuits have been even harder on excusable neglect claims involving ignorance of the rules. In Advanced Estimating System, Inc. v. Riney, 130 F.3d 996, 997 (11th Cir. 1997), the Eleventh Circuit held that "as a matter of law, the lawyer's failure to understand clear law cannot constitute excusable neglect." The court explained that "[n]othing in Pioneer indicates otherwise, and we believe that the law in this area remains as it was before Pioneer." Id. at 998; see also Midwest Employers Cas. Co. v. Williams, 161 F.3d 877, 880 (5th Cir. 1998) (noting that it would be a "rare case indeed" in which "misinterpretations of the federal rules could constitute excusable neglect"); Prizevoits v. Ind. Bell Tel. Co., 76 F.3d 132, 133 (7th Cir. 1996) (notwithstanding Pioneer, "[t]he excusable neglect standard can never be met by a showing of inability or refusal to read and comprehend the plain language of the federal rules." (internal quotation marks omitted)); Weinstock v. Cleary, Gottlieb, Steen Hamilton, 16 F.3d 501, 503 (2nd Cir. 1994) (same). These cases confirm that our post- Pioneer precedents do not conflict with Pioneer in refusing lightly to excuse an untimely notice of appeal caused by ignorance of the rules.

III.

The district court found that one of the salient reasons for the untimely notice of appeal was local counsel's ignorance of the Federal Rules of Appellate Procedure. That finding was based on an exchange between the court and local counsel that began with the court asking counsel if he had known, on August 21, that the notice of appeal was due that day:

MR. GURSKY: Well, by the math, obviously, when you add 60 days to the —

THE COURT: How many days?

MR. GURSKY: Well, at this point, it's more than 60 because you —

THE COURT: Thirty.

MR. GURSKY: Okay. Thirty. . . .

This factual finding informed the court's application of the four Pioneer factors to its excusable neglect determination. See 507 U.S. at 395, 113 S.Ct. 1489. The district court observed that there would be "little danger of prejudice" to Quebecor if the court granted the motion for extra time; that "the length of the delay was minimal (one day), and . . . would not have a serious impact on judicial proceedings"; and that there was no evidence the Unions had acted in bad faith. Nevertheless, it held that the "reason for the delay" was insufficient to justify an extension of time:

While the delay here was brief and Defendants have suffered no prejudice, the fact remains that counsel's failure to comply with a rule that is "mandatory and jurisdictional" was the result of ignorance of the law and inattention to detail. Gochis, 16 F.3d at 15 (citing [ United States] v. Robinson, 361 U.S. 220, 229, 80 S.Ct. 282, 4 L.Ed.2d 259 (1960)). There were no "unique or extraordinary circumstances" at play here. Id. at 14. This Court therefore concludes that Plaintiffs' motion must be denied. To find this neglect to be "excusable" would only serve to condone and encourage carelessness and inattention in practice before the federal courts, and render the filing deadline set in Fed.R.App.P. 4(a)(1) a nullity. For these reasons, Plaintiffs' Motion for Extension of Time to File Notice of Appeal is DENIED.

The Unions argue that the district court erred in its application of the Pioneer standard when it rested its finding that their neglect was not excusable on the absence of "unique or extraordinary circumstances." We read the district court's decision differently. Having found that the reason for the delay was, in addition to "inattention to detail," counsel's ignorance of a simple procedural rule, the court cited the absence of "unique or extraordinary circumstances" not as a talisman, but as a check on its conclusion that this degree of carelessness and inattention warranted no relief. In taking this approach, the court acted within its discretion and in conformity with our post- Pioneer precedents in declining to excuse the Unions' neglect. See Mirpuri, 212 F.3d at 631.

Denial of the Motion for Extension of Time to File Notice of Appeal is Affirmed.