*584OPINION OP THE COURT BY
KOBAYASHI, J.This is an appeal from an order of the circuit court granting defendant’s motion to dismiss.
On March 2,1965 plaintiff Jaime Y. Del Rosario filed a complaint alleging injuries suffered on March 1, 1963 due to defendant David Kohanuinui’s negligent operation of defendant Commercial Refuse Service’s vehicle. Defendants’ answer in part alleged that this claim was barred by the applicable two year statute of limitations.1 Defendants subsequently filed a motion to dismiss upon this ground.
At a hearing on this motion, testimony was given by plaintiff’s attorney and Kenneth K. Koyanagi, an adjuster for the insurer of defendant Commercial Refuse Service. This testimony dealt with settlement negotiations between these two conducted prior to the filing of the complaint. To support his contention that the conduct of Koyanagi, defendants’ agent, equitably estopped defendants from asserting the statute of limitations as a bar, plaintiff’s attorney additionally submitted a personal affidavit noting all negotiations with this adjuster. The substance of this evidence follows.
Koyanagi stated that in June 1964 he wrote to plaintiff’s attorney requesting that his physician, Dr. Nada-moto, examine plaintiff Del Rosario. Koyanagi’s reason was to determine the extent of plaintiff’s injuries attributable to defendants’ alleged negligence, Del Rosario having been hurt in a prior accident before March 1, 1963. Following this letter, telephone conversations between Ko-yanagi and plaintiff’s attorney regarding the matter took place. Then on August 12,1964, Koyanagi called plaintiff’s attorney about the examination and was told plaintiff had *585given the attorney “the green light” to proceed with a law suit. Koyanagi further testified, “At that time you told me he was not examined by Dr. Nadamoto. In fact, even appointment wasn’t made by phone. You said you would get on it, and that’s the last time [August 12, 1964] I heard from you.”
The testimony of plaintiff’s attorney, on the other hand, contradicted Koyanagi’s significantly. The attorney alleged that at the time settlement negotiations were discussed “in August, and in September, at the request of Mr. Koyanagi I withheld the filing of the suit because he wanted to at least have. the plaintiff examined by his physician prior to that.” Koyanagi denied making this request. Plantiff’s attorney further asserted that “either in December of 1964 or January of 1965 we had one other discussion with Mr. Koyanagi * * * [and] because Mr. Del Rosario at that point had still not been examined by Dr. Nadamoto, I was supposed to contact Mr. Del Rosario and Mr. Koyanagi was supposed to contact Dr. Nadamoto again, and this was the last conversation I recall having had with Mr. Koyanagi.” Koyanagi does not recall this conversation.
The affidavit of plaintiff’s attorney reiterates much of the substance of his testimony and also states that in the talk of December 1964 or January 1965 he “was promised a doctor’s report by defendants’ representative [Koya-nagi] and agreed not to file an action until the same was received.”
In granting defendants’ motion to dismiss on the statute of limitations, the court concluded there was “no misleading by the adjuster,” thus rejecting plaintiff’s claim of equitable estoppel. We reverse, finding the evidence presented raises a genuine issue as to a material fact, and that defendants therefore were not entitled to a judgment *586as a matter of law. Aku v. Lewis, 52 Haw. 366, 378, 477 P.2d 162, 169 (1970).
If when ruling on a motion to dismiss, tbe court considers matters outside tbe pleadings, as it did in tbe instant case, tbe motion becomes one for summary judgment. Richards v. Midkif, 48 Haw. 32, 38, 396 P.2d 49, 54 (1964); H.R.C.P. Rule 12(b).2 As the affidavit of plaintiff’s attorney was properly before tbe court, we must determine on appellate review whether all of tbe evidence, when viewed in tbe light most favorable to plaintiff Del Rosario, presents a genuine factual issue that would equitably estop. defendants from asserting tbe statutory bar. Aku v. Lewis, supra at 371.
When there is a disputed material factual issue as to whether a suit is timely brought, a defendant should not be granted summary judgment on the basis of the statute of limitations. Begnaud v. White, 170 F.2d 323 (6th Cir. 1948); Delson v. Minogue, 190 F. Supp. 935 (E.D.N.Y. 1961); Zimmerman v. Poindexter, 78 F. Supp. 421, 424 (D.C. Haw. 1947); 6 J. Moore, Federal Practice § 56.17(21) 2546 (2d ed. 1966). The sole question therefore on this appeal is whether the evidence raises the issue of estoppel; namely, was plaintiff, through his attorney, induced to refrain from filing suit before March 1, 1965 because of Koyanagi’s conduct?
While we are not concerned with deciding this factual issue, conflicting testimony and the affidavit of plaintiff’s attorney do raise it. Koyanagi initially wrote to the attorney in June 1964 asking that plaintiff see Dr. Nadamoto. For about seven weeks thereafter other Communications transpired regarding this same subject. On August 12,1964 *587plaintiff’s attorney received Koyanagi’s phone call and stated he was ready to file suit, and allegedly was requested not to do so because Koyanagi wanted plaintiff examined first. Another such request was allegedly made a month later. Then in a final conversation allegedly had in December 1964 or Januáry 1965 Koyanagi agreed to call Dr. Na-damoto and “promised” (emphasis supplied)3 to send to plaintiff’s attorney the doctor’s report. The attorney, in turn; agreed not to commence legal action until the report was received.
In view of this evidence we cannot say that Koyanagi’s claimed conduct could not have induced plaintiff’s late filing. Undisputed testimony establishes that seven months prior to the statute’s tolling plaintiff’s attorney had his client’s permission to file suit, that Koyanagi knew this, and that Koyanagi wanted Del Rosario medically examined before ongoing settlement negotiations were concluded. The charged contingency forestalling plaintiff’s legal action was this physical examination, and at Koyanagi’s request4 the attorney agreed' to defer-litigation until he received the report.
That plaintiff’s attorney hád some two months following the last alleged communication in which to filé suit does not necessarily preclude his assertion of estoppel.5 *588A plausible inference6 from tbe evidence is that the attorney fully expected a report prior to March 1, 1965. This inference and the issue of estoppel raised thereby must be resolved by the trier of fact.
John F. Zimmerman (Fong, Miho, Ghoy & Robinson of counsel) for plaintiff-appellant. Wayne Kekina (Herbert K. Shimabukuro with him on the brief, Libkuman, Shimabukuro & Ventura of counsel) for defendants-appellees.Reversed and remanded for trial.
The relevant language of ItLH 1955 § 241-7, Damage to persons or property, is:
“Actions for the recovery of compensation for damages or injury to persons or property shall be instituted within two years after the cause of action accrued, * * * .”
HRS § 657-7 is the current statutory counterpart.
H.R.C.P. Rule 56(e) reads in part:
“The [summary] judgment sought shall be rendered forthwith if the pleadings, * * * [and] affidavits, if any, show that there is no genuine issue, as to any material fact and that the moving party is entitled to a judgment as a matter of law. * * *”
While an affidavit in opposition to a motion for summary judgment cannot be used as the basis for resolving a factual' issúe, it may, be considered to ascertain whether an issue of fact is presented. Cf. Richards v. Midkiff, supra at 39.
Plaintiff’s attorney claims requests were made in August 1964, September 1964, and finally in December 1964 or January 1965.
The clash of evidence on this point makes a precise factual determination impossible and prompts a consideration of Koyanagi’s and plaintiff’s attorney’s credibility, an improper matter for summary judgment resolution. State v. Midkiff, 49 Haw. 456, 459, 421 P.2d 550, 553 (1966).
Worth noting is that in this “December 1964 or January 1965” negotiation, plaintiff’s attorney testified that in arranging the medical examination he was to contact plaintiff and Koyanagi was to notify the doctor. Nowhere does the evidence indicate satisfaction of either promise, *588nor if one promise was conditioned on performance of the other.
Note, however, Chesapeake Homes, Inc. v. McGrath, 249 Md. 480, 489, 240 A.2d 245, 250 (1968); Valley Nat. Bank of Phoenix v. Electrical Dist. No. 4, 90 Ariz. 306, 317, 367 P.26 655, 658 (1961); 3 Pomeroy, Equity Jurisprudence § 813 236 (5th ed. 1941).
Inferences drawn from the underlying facts alleged in the materials (affidavits and testimony) considered by the court in ruling on a motion for summary judgment must be viewed in the light most favorable to the party opposing the motion. Abraham v. S.E. Onorato Garages, 50 Haw. 628, 631, 446 P.2d 821, 825 (1968).