UPTIME Energy Drink (Original Citrus) contains 142 mg of caffeine per 12 oz can (355 ml / 12 oz). That is about 1.5 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg). Concentration: 40 mg per 100 ml.
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UPTIME Energy Drink (Original Citrus) Caffeine Content by Serving
| Serving | Volume | Caffeine | Per 100 ml | Level |
|---|---|---|---|---|
| 12 oz can | 355 ml / 12 oz | 142 mg | 40 mg | Moderate |
Source: caffeine figures from Caffeine Informer, accessed 2026-06-24. Values can vary by batch, location, and preparation; check the label or the source for the latest figures.
How UPTIME Energy Drink (Original Citrus) Compares to Coffee
At 142 mg per 12 oz can, UPTIME Energy Drink (Original Citrus) delivers about 1.5 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg). For a wider comparison across drinks, try the caffeine comparison tool or browse the full caffeine database.
When to Stop Drinking UPTIME Energy Drink (Original Citrus) Before Bed
With caffeine's median 5-hour half-life, a 12 oz can of UPTIME Energy Drink (Original Citrus) (142 mg) needs about 7 h 32 min to fall under 50 mg, the level where most people can fall asleep normally. That puts the last call at 2:15 PM (14:15) for a 10 PM bedtime and 3:15 PM (15:15) for an 11 PM bedtime. Individual half-lives range from roughly 2 to 12 hours, so treat these as a starting point.
The UPTIME Energy Drink (Original Citrus) sleep cutoff page has last-call times for four bedtimes, and the caffeine half-life calculator personalizes the curve to your metabolism.
