Please note that Mommsen uses the AUC chronology (Ab Urbe Condita), i.e. from the founding of the City of Rome. You can use this reference table to have the B.C. dates
From: The History of Rome, by Theodor Mommsen
Translated with the sanction of the author by William Purdie Dickson
Quintus Ofella, to whose firm perseverance in front of Praeneste the success of the last and most severe campaign was essentially due in equally open violation of the newly issued ordinances became a candidate for the consulship without having held the inferior magistracies. With Pompeius there was effected, if not a cordial reconciliation, at any rate a compromise. Sulla, who knew his man sufficiently not to fear him, did not resent the impertinent remark which Pompeius uttered to his face, that more people concerned themselves with the rising than with the setting sun; and accorded to the vain youth the empty marks of honour to which his heart clung.(51)
51. Cf. IV. IX. Fresh Difficulties with Mithradates
If in this instance he appeared lenient, he showed on the other hand in the case of Ofella that he was not disposed to allow his marshals to take advantage of him; as soon as the latter had appeared unconstitutionally as candidate, Sulla had him cut down in the public market-place, and then explained to the assembled citizens that the deed was done by his orders and the reason for doing it. So this significant opposition of the staff to the new order of things was no doubt silenced for the present; but it continued to subsist and furnished the practical commentary on Sulla's saying, that what he did on this occasion could not be done a second time.
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Reference address : https://www.ellopos.net/elpenor/rome/4-10-sullan-constitution.asp?pg=57