It's depends on the dosage and te metabolism of the person itself. An average dosed LSD trip typically lasts 6 to 12 hours, with the most intense effects occurring between 2 to 6 hours after ingestion. If the dosage is on the low side it could be more like 4-8 hours of noticeble effects. A real high dose can take 12 hours or even longer than that. Here's a general timeline:

Low Dose LSD (Micro to low dose, 20–100 μg)

• Total Duration: 6–8 hours
• Onset: 30–60 minutes
• Peak Effects: Around 1.5–4 hours after ingestion
• Come-down: Gradual fading until around 8–10 hours
• Typical Effects: Subtle visual changes, increased focus, openness, and emotional clarity — but still manageable. Ideal for introspection without being overwhelming.

Medium Dose LSD (100–200 μg)

• Total Duration: 7–10 hours
• Onset: 30–60 minutes
• Peak Effects: Around 1.5–5 hours after ingestion
• Come-down: Lasts up to 7–10 hours
• Typical Effects: Clear hallucinations, altered sense of time, sensory blending, emotional openness. Suitable for therapeutic work with proper guidance.

High Dose LSD (200+ μg)

• Total Duration: 8–14 hours
• Onset: 30–60 minutes
• Peak Effects: Around 1.5–6 hours after ingestion
• Come-down: Can continue until 8–14 hours
• Typical Effects: Deep ego dissolution, spiritual or mystical experiences, intense visuals, and time distortion. Only recommended for experienced users in a safe, guided setting.

In conclusion, the duration can vary based on dosage, individual sensitivity, and whether it's taken in combination with other substances (like in a wizard flip, which combines LSD and psilocybine).

From what I've heard, no two trips are ever the same. It's wild how something like metabolism or dosage can influence the experience so much.

I once ventured into the realm of psychedelics like LSD. While the effects were profound, they also felt manageable and within my control.