Timezone Offset Calculator
Convert USA meeting times across zones in seconds. Enter 14:30 +5.5 to -5, get 04:00 converted time instantly offline with no signup plus DST-manual rules and half-hour territory support for standups travelers calls study-abroad and handoffs across distributed-team workflows daily plus fractional-offset support with schedule-proofing for standups travelers billers students support and desks across global-team workflows daily.
Use this free timezone offset calculator to convert a time between any two UTC offsets, ideal for meetings and travel planning.
Calculator Inputs
About Offset Convert
Convert USA meeting times across zones in seconds. Enter 14:30 +5.5 to -5, get 04:00 converted time instantly offline with no signup plus DST-manual rules and half-hour territory support for standups travelers calls study-abroad and handoffs across distributed-team workflows daily plus fractional-offset support with schedule-proofing for standups travelers billers students support and desks across global-team workflows daily.
Numeric offsets only, no city DB. 14:30 +5.5 → -5 =04:00 same calendar wrap mod24.
DST: Manual — EDT -4, EST -5, PDT -7. Check date.
Half hours: 5.5 IST, 5.75 Nepal supported.
Privacy: Local.
Limits: Time only, not date shift flag.
Standup bridges: Austin teams standing $2M IST-to-EST rituals convert 14:30 to 04:00 without waking anyone wrongly. Seattle support handing $4M queues across zones keeps coverage gapless on 09/22/2026.
Travel landings: Chicago travelers landing $9,000 London weeks convert departures to arrivals for hotel check-ins. Denver students studying $40,000 Madrid semesters schedule home calls sanely.
Client billing: Miami freelancers billing $150,000 global retainers timestamp calls clients recognize. New York desks covering $90M Asian market opens convert shedules nightly.
DST manual: EDT minus 4 differs from EST minus 5 — verify dates, never assume current offsets.
Half territories: IST 5.5 and Nepal 5.75 work natively — fractional offsets are first-class citizens here.
Ritual bridges: Austin teams standing $2M IST-to-EST rituals convert 14:30 to 04:00 without waking anyone wrongly. Boston researchers joining $3M EU consortia schedule across six zones on 09/22/2026.
Landing plans: Chicago travelers landing $9,000 London weeks convert departures to arrivals for hotel check-ins. Phoenix nurses taking $200,000 travel contracts align shift differentials.
Client timestamps: Miami freelancers billing $150,000 global retainers timestamp calls clients recognize. New York desks covering $90M Asian opens convert schedules nightly.
Semester sanity: Denver students studying $40,000 Madrid semesters schedule home calls without 3 AM surprises. Seattle support handing $4M queues keeps coverage gapless.
Fraction natives: IST 5.5 and Nepal 5.75 work natively — fractional offsets are first-class, never hacks.
Where it is used
Teams IST to EST standups, travelers NYC to London, freelancers client calls, students study abroad, and support shift handoffs Austin teams stand up $2M IST-EST bridges, Chicago travelers land $9,000 London weeks, Miami freelancers bill $150,000 global clients, Denver students study $40,000 Madrid semesters, Seattle support hands $4M follow-the-sun queues, and New York desks cover $90M Asian opens Austin teams stand up $2M IST-EST bridges, Chicago travelers land $9,000 London weeks, Miami freelancers bill $150,000 global clients, Denver students study $40,000 Madrid semesters, Seattle support hands $4M follow-the-sun queues, New York desks cover $90M Asian opens, Boston researchers join $3M EU consortia, and Phoenix nurses take $200,000 travel contracts.
How to use the Offset Convert
- Local Time (HH:MM) — enter the value (e.g. 14:30).
- From UTC Offset (e.g. 5.5 for IST) — enter the value (e.g. 5.5).
- To UTC Offset (e.g. -5) — enter the value (e.g. -5).
- Calculate — press the Calculate button to see the result instantly above.
Formula
mins = HH*60+MM - round((from-to)*60) mod1440 → HH:MM.
Examples
IST to EST
EST to PST
NY to London
Frequently Asked Questions
- DST?
- Manual. Use -4 EDT summer, -5 EST winter USA.
- Date change?
- Mod24 wraps. Check prev/next day if overnight.
- Half hours?
- Yes decimals. 5.5, 9.5, 5.75 supported.
- Cities?
- Enter offset. NYC -5/-4, LA -8/-7, London 0/+1.
- Format?
- 24h HH:MM. 2:30pm =14:30.
- Private?
- Yes. Browser-local.