- Development Background: Aiming for a Timer that Shows “How Much Time is Left” Intuitively
- Visualizing Time with Numbers and a Bar
- Four Key Features of the “sology Time Limit Timer”
- Versatile Use for Various Time-Bound Activities
- Developer’s Comment
- About sology
- Product Specifications
- Where to Buy
- SNS
- Inquiries
- GDT Co., Ltd. Company Profile
- Related Link
Development Background: Aiming for a Timer that Shows “How Much Time is Left” Intuitively
While conventional digital timers are excellent for precise time measurement, reading only the displayed numbers can make it challenging to intuitively grasp the proportion of time remaining relative to the total set duration. For instance, “30 minutes left” feels different whether it’s out of 60 minutes or 180 minutes.
The development team sought to create a product that could solve common time management challenges with a simple innovation, moving beyond the often-uniform functions and appearances of typical kitchen timers. As daily life increasingly mixes study, work, and household tasks, the need for self-managed time allocation has grown. Individuals frequently need to decide how to pace themselves for tasks like exam preparation, switching between work and breaks during remote work, or coordinating multiple cooking steps. Judging pace and knowing when to transition to the next task or take a break can be difficult with only numerical displays. For those who struggle with time allocation or multitask, a visual representation of remaining time serves as a crucial trigger for action changes.
Visualizing Time with Numbers and a Bar
The sology Time Limit Timer simultaneously displays remaining time with both numerical digits and a bar. The numbers offer precise time remaining, while the bar provides a visual representation of the remaining quantity relative to the set time.

For example, if 60 minutes are set, users can see “how many minutes are left” numerically, and if the bar is halfway, they gain the immediate sense that “approximately half the set time has passed.” As time elapses, the bar decreases, making it easier to visually track time changes without constantly reading the numbers. This product aims not just to signal the end of a set period with an alarm, but to help users review their pace and actions even during the set time.
Four Key Features of the “sology Time Limit Timer”
1. Remaining Time Displayed with Both Numbers and a Bar
The timer accurately shows the remaining time numerically and features a bar that diminishes with time. This visual cue helps users understand how much time is left relative to the total set duration, aiding in time allocation for studying, working, or cooking.

2. Long Setting Time of up to 199 Minutes 50 Seconds
Users can set countdown times for up to 199 minutes and 50 seconds. This allows for use in short tasks as well as longer activities such as exam preparation, mock tests, extended study sessions, simmering dishes, bread proofing, and oven cooking. The official product page highlights its suitability for both long study and cooking durations. The count-up function can measure up to 199 minutes and 59 seconds.

3. Functions as a Clock When Not in Use
The timer can switch to a clock display. This allows it to be a permanent fixture on a study desk or in the kitchen, providing the current time when not actively timing. Consolidating a timer and clock into one device maximizes its utility in daily life.

4. Three Installation Methods: Magnet, Stand, and Strap Hole
To accommodate various locations and scenarios, the timer is equipped with a magnet and a stand on its back, as well as a strap hole. It can be attached to refrigerators or steel furniture with the magnet, or placed on a study desk or kitchen counter at an easy-to-view angle using the stand. The strap hole is useful for portability or hanging storage.
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Mounting may not be possible with the magnet depending on the material or shape of the surface.
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A strap is not included.

Versatile Use for Various Time-Bound Activities
The sology Time Limit Timer can be used in numerous situations where time needs to be structured, such as studying, working, and household chores.

1. Study and Learning Time Management
It is useful for managing time for qualification exams, language learning, homework, online learning, and reading. With both numerical and bar displays, it is suitable for pacing problem-solving or mock exams. Users can set specific durations, such as “study for 30 minutes” or “complete this page in 40 minutes,” before starting a learning session.
2. Work and Concentration Time Management
This timer can be used for remote work, desk work, meetings, and managing break times. Setting time limits for tasks like document creation or email responses provides a clear indicator for transitioning between work and breaks. In meetings, it can serve as a tool to help participants share and manage remaining time. It can also be adapted for techniques like the Pomodoro Technique by setting work and break times as needed. Note: It does not feature a dedicated Pomodoro mode or automatic repeat function.
3. Housework and Daily Life Time Management
It is convenient for managing cooking, cleaning, tidying up, exercise, gaming, and video viewing. It helps manage boiling or simmering times, or to set predefined durations like “clean for 15 minutes” or “exercise for 30 minutes.” For games or video streaming, it can be used by individuals or families to set and share usage limits.

Developer’s Comment
A developer commented, “Conventional digital timers often display remaining time only numerically, making it difficult to intuitively grasp how much time is truly left. Therefore, we aimed to create a product that combines precise numerical values with a visual bar to help even those who struggle with time allocation to intuitively understand remaining time. It can be used in various settings, including qualification studies, work, cooking, housework, reading, exercise, and children’s homework. We hope that both children and adults will use it as a tool to organize their time.”
About sology

sology delivers products that make everyday time more comfortable, whether it’s time for learning, resting, or spending with family. sology aims to help individuals and families alike organize their daily rhythm at their own pace.
Product Specifications

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Model Numbers: TM100 / TM201
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Product Name: sology Time Limit Timer
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Colors: TM100WH (White), TM100GR (Gray), TM201BE (Beige), TM201GR (Gray)
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Dimensions: Approximately W80 x D16 x H80mm
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Weight: Approximately 64g
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Maximum Set Time: 199 minutes 50 seconds
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Count-up Maximum Measurement Time: 199 minutes 59 seconds
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Alarm Duration: 15 seconds
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Clock Accuracy: Monthly deviation ±30 seconds
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Battery: CR2032 x 1
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Note: Two series, TM100 and TM201, are available to suit different usage scenes and sales channels. Basic specifications are common.
Where to Buy
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Rakuten Ichiba Store:
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Yahoo! Shopping Store:
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sology タイムリミットタイマー 勉強 タイマー ビジュアルタイマー デジタル バー表示 時計 受験 試験 学習 時間管理 長時間セット グレー ベージュ TM201 : sology公式ストア - 通販 - Yahoo!ショッピングあとどれくらい?が見えるタイムリミットタイマー1. 残り時間が目盛りで見えるから時間配分がしやすい2. 最大199分50秒の長時間セットができる3. 日常使いにも便利な時計表示切替が可能-製品仕様-サイズ:約幅80×奥行16×高さ80mm質...
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GDT Official Online Shop:
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勉強タイマー タイムリミットタイマー TM201 sology|残り時間をバーで可視化集中力を引き出す勉強タイマー「sology タイムリミットタイマー TM201」。デジタル数字と減っていくバー表示で、残り時間を直感的に把握。最大199分50秒の長時間セット対応で資格試験や仕事にも最適。磁石・スタンド・ストラップ穴付きで場...
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Electronics Retailers
SNS
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TikTok: https://www.tiktok.com/@gdt8313
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YouTube: https://www.youtube.com/channel/UCYbR9QOWOtlBhwuBu7h8KjA
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GDT Official LINE: https://lin.ee/rFZWNTg
Inquiries
Please contact GDT Co., Ltd. through their inquiry form: https://www.gdt.co.jp/contact/
GDT Co., Ltd. Company Profile
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Company Name: GDT Co., Ltd.
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Address: Park City 2F B, 5-17-10 Yanagisaki, Kawaguchi City, Saitama Prefecture, 333-0861 Japan
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Established: April 18, 2013
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Representative: Yukio Chigura
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Capital: 10 million JPY
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Business Activities: Product planning and sales of kitchen appliances, kitchen goods, home appliances, daily necessities and miscellaneous goods, e-commerce sales, BtoB
GDT Co., Ltd. plans and sells daily living products and home appliances that integrate into everyday life. The company focuses on developing products that prioritize ease of use, blend naturally into living spaces, and solve small daily inconveniences.

