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Internal Tool

TimezoneCalculator.

Convert Indian Standard Time (IST) to Australian timezones with live Daylight Saving detection. Built for client calls and internal scheduling across every Australian state and New Zealand.

Live DST DetectionIST ↔ Australian TZMeeting Invite GeneratorWorking Hours OverlapAbbreviations Cheat Sheet
Scheduling Reference

Change the source timezone to India or any Australian state, pick a date and time, and instantly see the equivalent across all regions — with accurate Daylight Saving handling built in.

IST

default source timezone

6+

Australian & NZ regions

Live DST

auto-detected per date

1-click

copy meeting message

Live World Clocks
🇮🇳--:--India
🇦🇺--:--Sydney
🇦🇺--:--Brisbane
🇦🇺--:--Adelaide
🇦🇺--:--Perth
🇳🇿--:--NZ

Source Timezone & Time

Quick pick

Converted Timezones

All times for selected date & time
🇦🇺
Sydney / Melbourne / Canberra
NSW · VIC · ACT · TAS
--:--
Standard Time
🇦🇺
Brisbane / Gold Coast
QLD — No Daylight Saving
--:--
No DST Year-Round
🇦🇺
Adelaide
SA — Daylight Saving observed
--:--
Standard Time
🇦🇺
Darwin
NT — No Daylight Saving
--:--
No DST Year-Round
🇦🇺
Perth
WA — No Daylight Saving
--:--
No DST Year-Round
🇳🇿
New Zealand
Auckland / Wellington
--:--
Standard Time
🇸🇬
Singapore
Singapore
--:--
Meeting Invite Generator

Generate your confirmation message

Fill in the details and copy a ready-to-send message for WhatsApp, email, or calendar invites.

Confirmation Message
Hi [Client Name], Just confirming our [call / meeting] on at --:-- . Please let me know if anything changes. Looking forward to speaking with you! Best regards, D&C Estimate Team

✏️ Edit the client name and meeting topic on the left to customise this message.

Before You Send a Meeting Invite

5-step scheduling checklist

01

Check the client's city / state

02

Check the client's current timezone code (AEDT vs AEST, etc.)

03

Check whether daylight saving is currently active

04

Schedule and communicate in the client's local time

05

Include the timezone in your confirmation if there is any chance of confusion

Quick Reference

When it's 10:00 AM in India

Standard vs Daylight Saving comparison

City
Standard Time
DST (Summer)
Sydney / Melbourne
3:30 PM AEST
4:30 PM AEDT
Brisbane
3:30 PM AEST
No DST
Adelaide
3:00 PM ACST
4:00 PM ACDT
Darwin
2:30 PM ACST
No DST
Perth
12:30 PM AWST
No DST
Auckland (NZ)
5:30 PM NZST
6:30 PM NZDT

IST is UTC+5:30 all year. Australian DST generally Oct–Apr.