Date Time

Generate NTP configs for chrony, ntpd, systemd-timesyncd, and Cisco devices with source parsing, client-access checks, and fallback warnings.

Run a guided 7-minute workout timer with preset 12-move circuits, adjustable intervals, browser cues, load charts, and plan exports.

Build and run an AMRAP timer with movement-loop parsing, target pace checks, live score logging, charts, and exportable session records.

Calculate age from birth and as-of dates with calendar wording, elapsed totals, leap-day rules, birthday countdowns, and milestone planning.

Calculate billable hours from timer, duration, or clock rows, then review rounding, write-downs, realization, client totals, and exports.

Find exact age, birthday countdowns, leap-day observance, milestone ledgers, and planning windows from any birth and reference date.

Run boxing-style round timers with work/rest planning, warning bells, live phase controls, round-load charts, session logs, and exports.

Calculate breast milk use-by times for fresh, thawed, warmed, or leftover milk with storage windows, label text, and care-context cautions.

Count business days or shift a deadline with custom weekend rules, pasted holidays, endpoint controls, and skipped-date ledgers.

Track CBT-I sleep diary nights, calculate sleep efficiency and wake drift, review trends, and keep saved rows in the current browser.

Plan a CBT-I sleep window from diary sleep and a fixed wake time, with projected efficiency, safety-floor checks, and weekly adjustment cues.

Create an import-ready .ics event file with escaped calendar text, timezone modes, reminders, validation checks, JSON, and downloads.

Run a two-player chess clock with Fischer, Bronstein, simple delay, low-time cues, move logs, and a balance chart for casual games.

Build a circuit training timer with named stations, work and transition timing, live cues, coaching checks, charts, and a shareable run sheet.

Plan pour-over, French press, espresso, moka, or cold brew recipes with dose math, brew schedules, strength checks, and dial-in cues.

Check a coffee bag's roast-date freshness window with brew method, roast level, grind, storage exposure, use pace, and timeline cues.

Count down to a deadline in local, UTC, fixed-offset, or IANA time with buffers, milestone rows, progress charts, and elapsed-time output.

Parse a Unix cron expression in your browser, expand five fields, preview upcoming runs, and catch timezone, macro, day-rule, and dialect risks.

Check your current time from the browser clock, freeze one timestamp, and compare local, UTC, Unix, ISO, offset, DST, and midnight clues.

Calculate elapsed time between dates with timezone offsets, workday counts, business-window overlap, checkpoint schedules, and exports.

Plan an EMOM workout with minute-by-minute targets, rest-buffer checks, live cues, finish logging, pacing charts, and downloadable JSON.

Estimate EV charging time from battery size, state of charge, charger limits, taper, derates, cost, added range, and departure fit.

Convert epoch seconds, milliseconds, or wall-clock dates into UTC and selected-zone timestamps with date parts and year-progress checks.

Build an event run sheet from pasted rows or CSV, detect overlaps and tight handoffs, and export timelines, tables, JSON, and ICS.

Build a dated vegetable garden calendar from crops, frost dates, season length, succession waves, bed notes, and workload checks.

Calculate growing degree days from pasted weather rows, biofix dates, base/cap settings, and stage thresholds with charts and audit warnings.

Build a HIIT timer with named intervals, warm-up and cooldown timing, density checks, live cues, session logs, charts, and JSON export.

Calculate invoice due dates from Net, EOM, business-day, weekend, and holiday rules, with walkthroughs and overdue status checks.

Calculate invoice late fees from due dates, grace periods, rates, caps, credits, and rounding, with clause math and AR note output.

Plan a meditation sit with prep countdowns, start and end bells, sparse interval cues, live progress, and browser-local schedule exports.

Check NTP or chrony peer rows for offset, jitter/error, reach, stratum, and selected-source risks with a ledger and offset map.

Check live local, UTC, and world-zone time, compare handoff work windows, and copy Unix timestamps, calendar invite text, or JSON.

Estimate ovulation and fertile windows from your last period, cycle length, luteal phase, and recent-cycle range with calendar cautions.

Estimate a patch window from device count, batch size, install and reboot time, with slack, phase timing, canary, and rollback cues.

Plan Pomodoro focus rounds with custom breaks, a live countdown, goal ETA, schedule rows, time-mix chart, and quiet browser cues.

Estimate your pregnancy due date from LMP, conception, IVF transfer, or ultrasound dates, with term windows and care-planning checkpoints.

Build a progressive muscle relaxation routine with tense-relax pacing, body-map steps, live phase cues, comfort checks, and exports.

Predict a race finish from a recent result, then compare Riegel pace, even splits, condition scenarios, and charted sensitivity.

Build a race pace plan from a target time, speed, prior race, or training block with split checkpoints, stop allowances, and scenario charts.

Track live race splits or paste stopwatch notes, compare pace by segment, and export charts, split ledgers, and summaries for post-race review.

Track Schengen short-stay days with rolling 180-day checks, proposed-trip warnings, passport-stamp parsing, and re-entry planning.

Calculate sleep debt from a 7- or 14-night log, with gross deficit, oversleep credit, recovery-day estimates, and bedtime targets.

Turn sleep scores and diary estimates into a ranked hygiene path with safety cautions, sleep-debt checks, and CBT-I window guidance.

Plan weekly sleep-window changes from sleep-efficiency percentages, fixed wake time, confirmation rules, and safety checks before changing bedtime.

Track a live multi-sport score, fouls, timeouts, possession, and event history with sport presets, correction cues, and score-flow review.

Track Swiss station departures or arrivals with live public data, platform and delay checks, route-stop detail, auto-refresh, and exports.

Build a Tabata timer from classic 20/10 or custom intervals, then track workout density, cue sheets, timeline rows, and run logs.

Build a metronome practice plan with tap tempo, swing feel, accents, ramp blocks, audible playback, and timing tables for each beat grid.

Calculate elapsed time, overnight spans, break deductions, and clock shifts with rounding, audit charts, ledgers, and shareable exports.

Find meeting times across IANA time zones, compare strict work-hour overlap with least-pain fallbacks, and export calendar-ready details.

Calculate timecode duration from start and end labels with drop-frame checks, inclusive or exclusive endpoints, handle frames, and handoff-ready outputs.

Estimate UPS runtime from real load, battery watt-hours, efficiency, health, reserve, and ratings so shutdown margins are easier to size.