Graduate from Last‑Minute Cramming with 90 Minutes in the Morning × 90 Minutes After School — The “Flowtime Technique” That Transforms High‑School Studying

Warm Up Your Day’s Studying with the First 90 Minutes

When you lock your most important subject into the first 90 minutes of the morning, the rest of the day’s learning falls into place right from the start. If you feel traction early on with a score‑boosting subject, your self‑study after school and drills at cram school also accelerate. The reason is simple: on weekdays, notifications and social media slice up your attention, and the more you hesitate to start, the later you actually begin. As the data show, high schoolers spend an average of about 6 hours 19 minutes online on weekdays, and 33.2% spend 7 hours or more—the base rate of fragmentation is larger than most people think.
With FlowTime, you can start the timer from the home screen in seconds. The single pattern of “Start→Break→Next” speeds up your morning ramp‑up so you can secure a focused 90–120 minutes right at the beginning.
Make Notification and SNS Interruptions Visible and Cut Wasteful Re‑Focusing

Every time your concentration breaks, it takes time for the engine to warm back up.
Studies report that when notifications arrive on a phone or tablet, performance on attention‑demanding study or work drops markedly—and even when a smartphone is merely present on the desk, performance falls. Physical and settings‑based measures—putting the device in a drawer or in another room, or turning on Focus/Do Not Disturb—work especially well during regular test periods.
FlowTime lets you select one task at a time and links it to the timer. While the timer is running, time is measured automatically, and later you can check how much time you put into which task in a statistics dashboard.
Allocate 20% of Work Time to Breaks to Build 90–120 Minutes of Deep Focus

When you’re fully immersed and a fixed 25‑minute Pomodoro alarm goes off, it can snap the very concentration you just built. With the Flowtime technique, which automatically allocates 20% of your work time to breaks, you can decide your break intervals when your study reaches a natural stopping point. That’s why it pairs well with active recall for English vocabulary and with solving large, multi‑step Math I A problems.
In comparative research measuring three break‑taking styles—Pomodoro, Flowtime, and self‑regulated breaks—average productivity and completion rates did not differ much overall, but fatigue rose rapidly over time with the Pomodoro technique.
Because FlowTime adopts the Flowtime technique, automating break time reduces indecision and makes resuming study smoother—an on‑the‑ground advantage that matters.
Fix “What to Do Next” to Eliminate Hesitation When Switching Subjects

From long English passages to Math I A practice and then to World History essays—if your hands stop every time you ask “what should I do next?” during a subject switch, small pockets of wasted time add up as your brain reboots again and again.
In FlowTime, you set exactly one “Next Task” at the start of a session and hit start. When you finish, you take the automatically calculated break, and when the break ends, you move straight on to that next task.
Because the task list, timer, and statistical aggregation are all linked in the browser, you can review break ratios and focus ratios in the stats dashboard by day, week, and month.
It scales laterally across school, cram school, and home, so it’s easy to keep your rhythm even as terms change and mock‑exam seasons come and go.
Browser‑Only Data Storage and Free to Use—Safe at School, Cram School, and Home

At rollout, what you care about is safety and effort. FlowTime stores timer data only on the device’s browser. It does not send your work history to external servers, and the core features are free. You can launch it from a browser on PC, smartphone, or tablet—no extra installation required. You can use the same interface on a school desktop, your laptop at home, and quick self‑study on your phone before heading to cram school.
Start Free Today: A 5‑Day‑a‑Week Routine of 90 Minutes in the Morning + 90 Minutes After School
For third‑year high school students (seniors), weekday “study time other than homework” averages 1 hour 42 minutes. If you fix a 90‑minute slot first thing in the morning and, on days you can, add another 90 minutes after school, the number of drills you complete per week will steadily climb. Aim for 8–10 hours of sleep, and don’t forget to keep your phone out of sight.
Once you reduce distractions and run FlowTime’s “Start→Break→Next” cycle every day, the “foundation time” that lifts class rank and mock‑exam scores comes back. Start by dedicating just your most important subject to 90 minutes in the morning, five days this week, with free FlowTime. Start in seconds, move efficiently with 20% auto breaks, and stick to a single task—once this rhythm lands, you can pace yourself without relying on all‑nighters.
-
The figures “about 6 hours 19 minutes average internet use on weekdays among high school students” and “33.2% at 7 hours or more” are stated as “Point 10” in the Children and Families Agency (Japan) flash report PDF.
https://www.cfa.go.jp/assets/contents/node/basic_page/field_ref_resources/9a55b57d-cd9d-4cf6-8ed4-3da8efa12d63/a8673c90/20250225_policies_youth-kankyou_internet_research_results-etc_14.pdf -
The weekday study time for third‑year students—“43 minutes for homework / 1 hour 42 minutes for study other than homework”—appears in Figure 1‑1‑1 of the Benesse Educational Research and Development Institute digest PDF.
https://benesse.jp/berd/shotouchutou/research/pdf/241220-1.pdf -
The finding that merely receiving notifications degrades performance on attention tasks and the finding that the mere presence of one’s own smartphone reduces task performance are based on Stothart et al. (2015) and Ward et al. (2017), respectively. ([2], [3])
The sleep guideline recommending 8–10 hours for middle‑ and high‑school students is referenced from Japan’s Ministry of Health, Labour and Welfare. ([4])
Reference Links
- [1] Investigating the Effectiveness of Self-Regulated, Pomodoro, and Flowtime Break-Taking Techniques Among Students - PubMed
- [2] The attentional cost of receiving a cell phone notification - PubMed
- [3] Brain Drain: The Mere Presence of One's Own Smartphone ...
- [4] [PDF] Healthy Sleep Guide 2023 (in Japanese) – Ministry of Health, Labour and Welfare