Time Zone Converter — free online tool
Remote teams compare “now” in two IANA zones and shift a meeting time without guessing daylight-saving offsets.
When to use Time Zone Converter
Schedule meetings across offices without doing mental UTC arithmetic.
Cross-check anything that affects money or health with a qualified professional or official source.
What Time Zone Converter does not do
IANA zone labels only. Does not book meetings or sync Google Calendar.
How to use Time Zone Converter
- Pick two IANA time zones on the Time Zone Converter.
- Read live clocks for “now” in each zone.
- Enter a local date-time in one zone to see the matching instant in the other.
- Account for daylight saving—zones update rules independently of this page.
Practical tips
- Pick IANA zones (e.g. Asia/Karachi) rather than fixed offsets so daylight saving is handled.
- Schedule recurring calls by a host city, since offsets drift twice a year in many regions.
- Double-check the date—converting across the dateline can land you on the next day.
Example
15:00 Asia/Karachi → America/New_York the same instant for a standup invite.
Related tools on Webtoolshop
- Unix Timestamp Converter — Epoch ↔ local datetime.
- Date Difference Calculator — Calendar span, not time of day.
Limitations
Needs valid IANA names. Historical DST changes follow the browser’s TZ database, which can be outdated.
Privacy & data
For this calculator-style page, numbers and dates stay in your browser memory until you leave. They are not saved to our servers.
Frequently asked questions about Time Zone Converter
What does the Time Zone Converter not do?
IANA zone labels only. Does not book meetings or sync Google Calendar.
Give me a concrete example for the Time Zone Converter.
15:00 Asia/Karachi → America/New_York the same instant for a standup invite.
Can I use the Time Zone Converter for official tax, loan, or medical decisions?
No. Results are simplified estimates for learning and quick checks. Confirm figures with a qualified professional, lender, or government source before filing or signing contracts.
Where does my input go when I use the Time Zone Converter?
For this calculator-style page, numbers and dates stay in your browser memory until you leave. They are not saved to our servers.
Time Zone Converter
Live time in two IANA zones, and convert one local date-time to both zones.
Same moment in both zones
Pick date & time as shown by your device — that instant is converted to wall clocks in A and B.