UTC NOW vs Block Time Calculator

UTC NOW converts UTC date and time to your local time, and back again. Pick a date and time in UTC and the matching local time appears instantly. Or pick your local date and time and see the UTC equivalent. Both directions work the same way, on their own tab. WHY UTC NOW - Simple interface. Two tabs, nothing to learn. - Small file size. - No ads. - No account and no sign-up. - Works offline. No network connection is used at any point. WHO IT IS FOR - Developers reading server logs, timestamps, and CI output in UTC - Pilots, sailors, and radio operators working in UTC / Zulu time - Anyone scheduling meetings or calls across time zones Your local time zone is taken from your device settings, so there is nothing to configure. Open the app and it is ready.

The time calculator built for the flight deck. Designed as an infinite scratchpad for flight and duty time, BlockTime keeps you focused with a distraction-free, ultra-minimalist interface optimized for cockpit readability — day or night. Why pilots use Block Time: • True HH:MM math — Add and subtract times with automatic 60-minute rollovers. No more mental conversions. • ATM-style input — Type digits right-to-left, no colon key needed. 4 → 1 → 5 becomes 04:15. Fast and reliable in turbulence. • Live history feed — Every calculation is saved with its formula. Tap any past result to drop it back into the calculator and keep going. • Cumulative workflow — Press = and your total stays on screen. Immediately add the next leg of your trip. • Night-flight friendly — High-contrast dark and light themes for any lighting condition. • Zero clutter — No ads, no menus, no tabs. One screen. One job, done well. Audit your logbook in seconds without the math errors. Download Block Time and make your logbook add up.