*515 Lemuel Anderson appeals the district court’s dismissal of his claims for lack of subject matter jurisdiction. We must examine the basis of our jurisdiction sua sponte if necessary. Mosley v. Cozby, 813 F.2d 659, 660 (5th Cir. 1987). A timely notice of appeal is necessary for this court to exercise jurisdiction. Robbins v. Maggio, 750 F.2d 405, 408 (5th Cir. 1985). The district court entered final judgment on June 8, 2005. Anderson filed a motion for reconsideration of part of the final judgment on June 20, 2005. Since we construe this motion as a timely Rule 59(e) motion, see, e.g., Richardson v. Oldham, 12 F.3d 1373, 1377 & n. 9 (5th Cir. 1994), the time for filing a notice of appeal did not begin running until June 22, 2005, the date the district court denied this motion. Anderson filed a subsequent motion for reconsideration on July 6, 2005; whether construed as a second Rule 59(e) motion or a Rule 60(b) motion, this motion does not toll the filing deadlines for a notice of appeal. See Fed.R.Civ.P. 60(b); Trinity Carton Co. v. Falstaff Brewing Corp., 816 F.2d 1066, 1069 (5th Cir. 1987) (“A motion to reconsider an order disposing of a motion of the kind enumerated in Rule 4(a) [of the Federal Rules of Appellate Procedure] does not again terminate the running of the time for appeal.”) (internal quotation omitted). See generally Harcon Barge Co. v. D & G Boat Rentals, Inc., 784 F.2d 665 (5th Cir. 1986). Anderson filed his notice of appeal on August 8, 2005, which is not within the thirty day time limit for filing an appeal in a civil case. Fed. R.App. P. 4(a)(1)(A). As such, this court is without jurisdiction to consider Anderson’s appeal. Accordingly, the appeal is DISMISSED for lack of jurisdiction.