Short answer. Article 1185 says the obligation becomes effective once the fixed time has elapsed, or once it becomes evident the event cannot occur, whichever comes first. If no time was fixed, the condition is deemed fulfilled at whatever time was probably contemplated given the obligation's nature.
What the law says
The condition that some event will not happen at a determinate time shall render the obligation effective from the moment the time indicated has elapsed, or if it has become evident that the event cannot occur.
Civil Code, Article 1185 — Negative Condition. Read the full provision →
What the law says
If no time has been fixed, the condition shall be deemed fulfilled at such time as may have probably been contemplated, bearing in mind the nature of the obligation.
Civil Code, Article 1185 — Negative Condition. Read the full provision →
Two ways a negative, time-bound condition is treated as fulfilled
Article 1185 addresses obligations that depend on something not happening within a set time. It provides that such an obligation "shall render the obligation effective from the moment the time indicated has elapsed, or if it has become evident that the event cannot occur." There are therefore two distinct triggers: simply waiting until the fixed period runs out, or an earlier point where it becomes clear the event is no longer possible at all, even before the deadline arrives.
Why the law allows an earlier trigger
Requiring a party to wait out the full fixed period even after it is already obvious the event cannot happen would serve no real purpose and would only delay an outcome that is already certain. By allowing the obligation to become effective as soon as it is evident the event cannot occur, the article lets the parties act on that certainty immediately, rather than being forced into an artificial waiting period once the underlying uncertainty has already been resolved.
When no specific time was ever fixed
Not every negative condition comes with a stated deadline. For that situation, the article provides a separate rule: "if no time has been fixed, the condition shall be deemed fulfilled at such time as may have probably been contemplated, bearing in mind the nature of the obligation." Here, the law does not leave the condition open indefinitely — it directs a court or the parties to look at what time period would have made sense given the kind of obligation involved, filling the gap the parties themselves left unaddressed.
Applying this to your own obligation
If your agreement sets an actual deadline, your obligation becomes effective either once that deadline passes without the event occurring, or earlier if it becomes evident the event simply cannot happen anymore. If your agreement never specified a time at all, you and the other party — or a court, if you disagree — would need to work out what timeframe was reasonably contemplated given what the obligation was actually about, since the law fills that silence rather than leaving the condition permanently unresolved.
Cases citing this provision
These Supreme Court decisions cite the provision above. We list them so you can read them yourself; the summaries of what each decided are not ours to give.
- The Wellex Group, Inc. vs. U-Land Airlines, Co., Ltd, G.R. No. 167519, January 14, 2015 — read the decision on LawPhil →
- Sergio R. Osmeña III vs. Power Sector Assets and Liabilities Management Corporation, et al, G.R. No. 212686, October 5, 2016 — read the decision on LawPhil →