日付ピッカーホイール
スケジュール用のランダムな日付ピッカー
- 月曜日
- 火曜日
- 水曜日
- 木曜日
- 金曜日
- 土曜日
- 日曜日
Date Picker Wheel — Settle the 'When' When Nobody Can Agree on a Day
Five people, five free evenings, zero overlap. Drop the candidate days onto the wheel and spin. It hands you a date in a second — no thread that runs forty messages deep, no poll that stalls at three votes.
For the meeting, the launch, the weekend away — a quick way to commit to a day
wheel.expertを選ぶ理由
End the Scheduling Standoff
When a group keeps trading 'I could maybe do Thursday?' the calendar never closes. Load the days everyone can actually make, spin, and the wheel picks one. The choice is made for you, so nobody has to be the person who decided.
A Fair Draw Among the Open Days
Got three weekends that all work? The wheel gives each the same odds. It pulls from the Web Crypto API — the randomness browsers use for security keys — so 'the 14th' isn't quietly favored over 'the 21st' just because someone typed it first.
Type Real Dates, Not Just Weekdays
It ships with Monday through Sunday, but you can wipe that and enter 'June 12,' 'first Saturday of July,' or 'the 3rd and the 17th.' The wheel only spins the dates you put on it.
Build a Rotation, One Spin at a Time
Need a study day this week, a different one next? Spin, remove the winner, spin again. Each day drops out so you get a no-repeat rotation across the whole stretch instead of always landing on Wednesday.
Works on the Train, in the Office Basement
Picking a day shouldn't wait for signal. Installed as a web app, the wheel spins with no connection — useful when you're hashing out a date in a meeting room where the WiFi gave up years ago.
No Login, No Calendar Access
It never asks to read your calendar or your contacts. Open the page, type your days, spin. Nothing is saved, nothing is shared, and there's nothing to sign up for.
How to Use the Date Picker Wheel
Put Your Candidate Days On
Start from the weekday preset or clear it. Then type the days in play — 'Saturday,' 'June 19,' 'the last Friday of the month.' Both loose labels and exact dates sit on the wheel side by side.
Trim to What's Realistic
Pull off the days that don't actually work and the wheel narrows with you. Deciding between two free weekends feels very different from juggling all seven days, so shape it to the real shortlist.
Spin for the Date
Tap the middle. The wheel turns, eases off, and stops on one day — the algorithm chose it, not your thumb hovering over the option you secretly wanted.
Lock It In, or Spin Again
Happy with the day? Go book it. Need a second date for the follow-up? Remove the winner and spin once more. Earlier picks stay in the history panel if you want to compare.
When People Reach for the Date Wheel
The Group That Can't Pick a Day
Friends planning a dinner, a board trying to set a call — once two or three days are equally fine for everyone, more debate adds nothing. The wheel cuts it off and names the day.
Choosing a Launch or Go-Live Day
A team agrees the feature ships 'sometime next week' but stalls on which day. Load the safe options — skip the Friday everyone fears — and let the spin commit them to one.
Rotating a Study or Chore Day
Same day every week gets stale and easy to skip. Spin a fresh day for deep-work study or the big clean, removing each as it lands so the week stays varied.
Which Day Is the Workout Day
If 'I'll train when I feel like it' has quietly become 'never,' let the wheel assign the days. Put your free slots on, spin two or three times, and the gym days are set before excuses start.
Which Weekend for the Trip
Three open weekends, no consensus, and the longer it sits the more flights cost. Drop the dates on, spin, and turn an endless 'whenever works' into a weekend you can actually book.
Why This Beats a Group Poll — or Just Guessing
A Decision, Not Another Open Vote
Every Open Day Gets Equal Odds
Your Days, No Calendar Hooks
ルーレットを回す準備はできましたか？
毎日、公平でランダムな選択をする何千人もの仲間に加わろう。
真にランダムな選択 - アルゴリズムの仕組み
Math.random() を使用する多くのホイール スピナーとは異なり、wheel.expert は暗号的に安全な乱数を生成するためにWeb Crypto API (crypto.getRandomValues()) を使用します。これは、パスワード ジェネレーターなどのセキュリティ クリティカルなアプリケーションで使用されるものと同じ API です。
ウェブ暗号化 API (CSPRNG)
すべての最新ブラウザに組み込まれている暗号的に安全な擬似乱数ジェネレーター (CSPRNG)である crypto.getRandomValues() を使用します。
不偏選択アルゴリズム
すべてのエントリの重みが等しい場合は、 ランダム選択でよくある問題であるモジュロ バイアスを排除するために拒否サンプリング を使用します。これにより、 各エントリが選択される確率が数学的に等しいことが保証されます。重み付けされたエントリでは、確率は割り当てられた重みに比例します。
クライアント側の透明性
すべてのランダムな選択はスピンの瞬間にブラウザ内で行われます。コードはオープンであり、ブラウザーの DevTools 経由で検査できます。重要な景品の場合は、視聴者に対する公平性の証拠としてスピンを画面録画することをお勧めします。
🔍 自分で確認してください: DevTools (F12) を開き、コンソールで乱数の生成を確認します。私たちは window.crypto.getRandomValues() を使用します。これは銀行やセキュリティ アプリケーションで使用されているのと同じ暗号化 API です。
一般的な使用例
- ✓スケジュールの計画
- ✓会議の日程
- ✓イベントのスケジュール設定
- ✓期限設定
- ✓予約
よくある質問
Yes. Clear the Monday-through-Sunday preset and type whatever you need — 'June 12,' 'first Saturday of July,' even 'the 3rd or the 17th.' The wheel spins only the days you load, so it works for picking an exact date as easily as a day of the week.
Spin, hit 'remove winner,' and spin again. Each day drops out of the next round, so three or four spins hand you a no-repeat set of days — handy for setting a study rotation or spreading workout days across the week.
It is. The picker draws from the Web Crypto API, the same source browsers use for security keys, so every day on the wheel has identical odds. The date someone typed first gets no head start over the rest.
Just don't add them. The wheel can only pick from the days you put on it, so if you skip Friday entirely, it can't land there. That's how teams keep risky go-live days out of a launch draw.
No, and that's deliberate. It never asks for calendar or contact access — you type the candidate days yourself. Once the wheel names a date, you take it to whatever calendar you already use. Nothing is read, nothing is stored.
It does. The date wheel installs as a progressive web app, so after the first visit it spins offline — which is exactly when you tend to need it, stuck settling a meeting day in a basement room with no signal.