The system most readers use
The standard timing convention has two parts. The suit sets the unit: Wands are days, Swords are weeks, Cups are weeks to months, and Pentacles are months to years: fire is fastest, earth is slowest, which follows the elemental logic of the suits. The number then sets the quantity. A Three of Wands reads as roughly three days; a Nine of Pentacles as something closer to nine months.
Applied to a real query: the Ace of Swords. Swords means weeks and an Ace counts as one, so about a week. The card's own meaning happens to agree, a sudden clarity or a decision that cuts clean is fast by nature, and when the system and the meaning point the same way, the read is worth more than either alone.
Major Arcana and court cards break the system
Neither has a number that fits the scheme, and both are usually handled as exceptions. Major Arcana are read as long or indefinite, on the reasoning that they describe forces largely outside your control. The more useful phrasing is not 'this will take years' but 'this is not running on your schedule', which is real information, even though it is not the information people were hoping for.
Court cards are usually read as people rather than periods. A Knight of Wands in a timing position more often means the timing depends on somebody (their decision, their arrival, their willingness to move) than that it will happen in any particular week. If your timing question returns a court card, the honest translation is: this is waiting on a person.
The other systems, and why that is a problem
There are several competing conventions. Some readers use astrological correspondences, mapping Major Arcana to signs and reading the timing as that sign's season, The Empress to Taurus and therefore late spring. Others reverse the suit speeds entirely, or use the numbers as weeks regardless of suit, or count cards laid between the significator and the outcome.
That variety is worth naming plainly, because it is the strongest argument against taking any of it too seriously. Three readers using three traditional systems will give three different answers for the same card, and none can point to a track record that favours theirs. These are inherited conventions with internal logic, not measurements of anything.
What timing cards are actually good for
Pace, not dates. The genuinely useful distinction a timing read produces is fast versus slow, and moving versus stalled. The Eight of Wands and the Hanged Man tell you meaningfully different things about a situation, and neither of them is telling you a date: one describes momentum already in motion, the other a suspension that has not resolved.
There is also a diagnostic use. Drawing consistently slow cards on a question you keep asking is worth noticing: it may reflect that the situation genuinely has not moved, or that you already suspect it has not and the reading is showing you your own assessment. Either reading is more useful than a number of weeks.
Why 'when' is usually the wrong question
Most timing questions are not really about time. 'When will they call?' is almost always 'will they call?' wearing a more answerable-sounding costume, and 'when will this get better' is usually 'will this get better'. The timing frame feels more concrete, which is exactly why people reach for it, but it produces an answer that cannot be acted on and cannot be checked until the date passes.
The rewrite that works is to ask what the delay depends on. 'What is this waiting on?' and 'what would move this?' are questions tarot handles well, because they describe the current shape of a situation rather than forecasting an event. They also return something you can do this week, which a date never does.
If you use timing anyway
Pick one system and record it. Note the card, the timing you read from it, and the date you drew it, then go back later and check. Almost nobody does this, which is precisely why the conventions survive unexamined. Your own log will tell you more about whether timing reads work for you than any guide can, including this one.
And hold the result loosely enough that it does not change your behaviour in ways you would regret. A card suggesting three months is not a reason to stop applying for the job, calling the person, or making the decision. If a timing read is making you wait for something you could act on, it has stopped being a reflection tool and started being an excuse.
