MEMORANDUM ***

Lance McDermott appeals pro se from the district court’s judgment dismissing his *687 action alleging that his employer violated Title VII of the Civil Rights Act of 1964 (“Title VH”), the Age Discrimination in Employment Act (“ADEA”), and the Whis-tleblower Protection Act (“WPA”). We have jurisdiction under 28 U.S.C. § 1291. We review de novo. Cholla Ready Mix, Inc. v. Civish, 382 F.3d 969, 973 (9th Cir. 2004). We affirm.

The district court properly determined that McDermott’s Title VII and ADEA claims were time-barred because McDer-mott did not file this action within 90 days of receiving the right-to-sue letter from the Equal Employment Opportunity Commission (“EEOC”). See 42 U.S.C. § 2000e-6(f)(l); 29 U.S.C. § 626(e); O’Donnell v. Vencor Inc., 466 F.3d 1104, 1111 (9th Cir. 2006) (per curiam) (Title VII and ADEA claims were untimely because complaint was filed more than 90 days after EEOC’s issuance of right-to-sue letter, even though earlier dismissed complaint was timely). The district court properly declined to apply equitable tolling because McDermott failed to establish grounds warranting such relief. See Nelmida v. Shelly Eurocars, Inc., 112 F.3d 380, 384 (9th Cir. 1997) (“Equitable tolling is ... to be applied only sparingly, and courts have been generally unforgiving ... when a late filing is due to claimant’s failure to exercise due diligence in preserving his legal rightsf.]” (alteration, citation, and internal quotation marks omitted)).

The district court properly dismissed McDermott’s claims under the WPA because it does not apply to the United States Postal Service (“USPS”). See 5 U.S.C. §§ 104(1), 105, 2105(e), 2302(a)(2)(C) (USPS excluded from WPA’s definition of “agency,” and USPS employees generally excluded from definition of “employee”); see also 39 U.S.C. § 201 (establishing USPS as an independent establishment of the executive branch of the United States Government); Booker v. Merit Sys. Prot. Bd., 982 F.2d 517, 519 (Fed.Cir. 1992) (WPA does not apply to USPS).

McDermott’s remaining contentions are unpersuasive.

AFFIRMED.