Short answer. No. Once a court fixes the period for an obligation under Article 1197, it cannot later change that period itself. Courts may set a duration where the parties intended a period but left it open, or where performance depends on the debtor's will, but having fixed it, the same courts cannot move the deadline again.
What the law says
Once fixed by the courts, the period cannot be changed by them.
Civil Code, Article 1197 — When the Court Fixes the Period. Read the full provision →
When a court may fix a period at all
Sometimes an obligation clearly contemplates a period for performance, yet the parties never stated one, or they left the timing to the debtor's own will. To keep such an obligation from being either instantly due or indefinitely postponed, Article 1197 lets the courts step in and fix the duration. This judicial power fills a genuine gap: it supplies a deadline the parties intended but did not spell out, or it curbs an obligation whose timing would otherwise rest entirely on the debtor's say-so.
The standard for the period
When a court sets the period, it does not choose arbitrarily. It must determine the period that, under the circumstances, the parties would probably have contemplated. The court looks to the nature of the obligation and the situation of the parties to arrive at a reasonable, intended timeframe, rather than imposing whatever term it prefers. The aim is to honour the parties' presumed intention about timing, giving effect to the deal they seemingly meant to make rather than rewriting it.
Once fixed, the period is set
The article closes with a firm limit on the court's own power: once fixed by the courts, the period cannot be changed by them. Having supplied the missing deadline, the court cannot later move it. The judicially fixed period becomes part of the obligation and takes on the same firmness as if the parties had agreed to it. This gives both sides certainty: the debtor knows exactly when performance is due, and the creditor can rely on that date without fear that the court will shift it again.
Why finality matters
The rule against changing a fixed period protects the stability of the obligation. If courts could keep adjusting deadlines, neither party could plan around them, and litigation over timing would never end. By making the fixed period final, Article 1197 ensures that the court's intervention resolves the uncertainty once and for all. For the parties, the practical consequence is that arguments about the deadline should be made before the court fixes it, because afterward, the date stands and the same court will not disturb it.