45 minutes in the kitchen
Several cooking steps land near the 45 minute mark. A whole chicken roasted at 350 F often needs about 45 minutes, depending on its size. A tray of root vegetables cut into chunks roasts in roughly the same window. If you are proofing dough for a second rise, 45 minutes is a common resting time. The timer keeps counting even when you switch tabs to check a recipe, because it reads the clock instead of counting ticks. The tab title shows the minutes left, so you can glance at it from another window. When the alarm sounds, it comes from the browser as a tone. You can pick beeps, a chime, or a silent flash of the tab title.
Where else 45 minutes fits
This length shows up outside the kitchen too. A classroom quiz section often runs 45 minutes, which matches a typical period. A reading sprint of 45 minutes gives you time to get through a chapter without losing focus. At the gym, a full circuit or a long rest block can take 45 minutes from warm-up to last set. A meeting booked for 45 minutes leaves a gap before the next hour. You can type the duration as 45m or 45:00, and the countdown starts from the current time. If you reload the page by accident, the timer picks up where it left off in that tab. The stopwatch on the same site works the other way, counting up from zero. For a shorter focus block, try the 25 minute timer. For a longer session, the Pomodoro timer breaks work into rounds with short breaks.