South Korea · +82

Phone Call Reminders in South Korea

Remindavo calls your SK Telecom, KT, or LG U+ mobile number before every Google Calendar or Outlook meeting — on Korea Standard Time, no DST, no setup friction. Works on all Korean 010 numbers.

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Works on all major South Korean carriers & MVNOs

SK Telecom (T World) KT Corporation (Olleh) LG Uplus (LG U+) HelloMobile (CJ) SK 7Mobile KT M Mobile U+알뜰모바일 Eyagi Mobile KB Liiv M All 알뜰폰 MVNOs

How It Works

Remindavo connects to your Google Calendar or Microsoft Outlook and calls your Korean mobile number at a configurable lead time (2 to 60 minutes) before each scheduled meeting or event. There is no app to install and no per-event configuration — once connected, every calendar event automatically triggers a reminder call.

Setup in 60 seconds: Sign up at web.remindavo.com → connect your Google Calendar or Outlook → add your +82 mobile number → choose your lead time. Remindavo calls your Korean number immediately with a test call to confirm delivery.

South Korea's business culture is highly meeting-intensive, with Google Workspace and Microsoft 365 both widely adopted across Korean corporates, startups, and multinationals. Whether you are in Samsung's headquarters in Seocho, a Kakao engineering team in Pangyo, an international firm's Seoul office, or working remotely across time zones, Remindavo ensures your phone rings before every scheduled event on your calendar.

Korea Standard Time (KST) — UTC+9, No DST

South Korea operates on Korea Standard Time (KST), permanently fixed at UTC+9. South Korea briefly observed Daylight Saving Time in 1987 and 1988 — introduced specifically for the 1988 Seoul Summer Olympics — and has not observed DST since. Clocks remain at UTC+9 year-round with no spring-forward or fall-back transitions.

KST is the same UTC offset as Japan Standard Time (JST), which means South Korea and Japan are always at the same local clock time. Unlike Japan, however, South Korea has never formally designated a DST policy since 1988, so the UTC+9 offset is permanent and unconditional.

When it's 9:00 AM KST in Seoul…

Seoul / KST
9:00 AM
Tokyo / JST
9:00 AM
London / UTC (GMT)
12:00 AM (midnight)
London / BST (summer)
1:00 AM
New York / EST
7:00 PM (prev. day)
New York / EDT (summer)
8:00 PM (prev. day)
Los Angeles / PST
4:00 PM (prev. day)
Singapore / SGT
8:00 AM

Remindavo reads your calendar event times in UTC and converts them to your local KST automatically. No time zone configuration is required — your Google Calendar and Outlook already store events in UTC, and Remindavo calls you at the correct Korean local time regardless of where the meeting was created.

Korean Mobile Numbers — Format and Carriers

All current South Korean mobile numbers use the 010 prefix in domestic format: 010-XXXX-XXXX. In international format, the leading zero is dropped: +82-10-XXXX-XXXX.

Legacy prefixes that were previously assigned to specific carriers — 011 (SKT), 016 and 018 (KT/KTF), 017 (Shinsegi Telecom), 019 (LG Telecom) — are no longer issued to new subscribers following South Korea's full mobile number portability (MNP) implementation, which completed the migration to 010 for all mobile subscribers. If your Korean mobile number still uses a legacy prefix, it remains valid; Remindavo supports Korean mobile numbers in all active formats under the +82 country code.

When adding your number in Remindavo, select South Korea (+82) and enter your mobile number without the leading zero. For example: domestic 010-1234-5678 → enter as +82 10 1234 5678.

South Korea's Three Major Carriers

알뜰폰 (Alteulpon) — Korea's MVNO Ecosystem

South Korea has one of the most active MVNO markets in Asia. More than 70 MVNOs operate as 알뜰폰 (alteulpon — literally "thrifty phone" or "budget phone") providers, reselling voice and data capacity from SKT, KT, and LG Uplus networks at lower prices. Major alteulpon providers include:

All alteulpon numbers use the same +82 country code and 010 mobile prefix, and Remindavo works with all of them.

Who Uses Remindavo in South Korea

South Korea's technology-driven, meeting-intensive business culture makes Remindavo particularly valuable for:

PIPA Compliance — South Korea's Data Protection Framework

South Korea's Personal Information Protection Act (PIPA — 개인정보 보호법) is one of Asia's most comprehensive data protection frameworks. Originally enacted in 2011, PIPA was substantially amended in 2020 when the Personal Information Protection Commission (PIPC — 개인정보보호위원회) was established as a unified, independent supervisory authority. A further amendment in 2023 (effective September 15, 2023) introduced enhanced provisions on pseudonymization, rights of data subjects regarding automated decision-making, and updated cross-border transfer rules.

South Korea received an EU adequacy decision from the European Commission in December 2021, allowing the free flow of personal data between EU member states and South Korea under the PIPA framework with supplementary provisions. South Korea also concluded a UK data adequacy arrangement post-Brexit. This makes South Korea one of a small number of non-EEA countries recognized as providing adequate data protection under EU standards — alongside Japan, Israel, Switzerland, New Zealand, Canada, and the UK.

Remindavo complies with PIPA by:

Never miss a meeting in South Korea

Connect your Google Calendar or Outlook and get a phone call on your SK Telecom, KT, or LG U+ number before every event — on KST, no app required.

Start Free 14-Day Trial

No credit card needed · No app required · Works on all Korean 010 numbers

Frequently Asked Questions

Does Remindavo work with South Korean phone numbers?

Yes. Remindavo fully supports South Korean mobile numbers starting with +82, across all three major MNOs — SK Telecom (SKT), KT Corporation, and LG Uplus — and all 알뜰폰 (alteulpon) MVNO providers including HelloMobile, SK 7Mobile, KT M Mobile, U+알뜰모바일, KB Liiv M, and others. All current Korean mobile numbers use the 010 prefix: domestic format 010-XXXX-XXXX becomes +82-10-XXXX-XXXX in international format (drop the leading zero). Remindavo places a test call immediately after you add your number to confirm delivery.

Is Remindavo compliant with South Korea's PIPA data protection law?

Yes. Remindavo operates in accordance with South Korea's PIPA (개인정보 보호법), enforced by the PIPC (개인정보보호위원회). South Korea holds an EU adequacy decision (December 2021) recognizing its data protection framework as equivalent to EU GDPR standards. Remindavo collects only your calendar event times and mobile number — nothing more — and never sells or shares your data. You can request deletion at any time at web.remindavo.com/delete-account.

What time zone does Remindavo use for South Korea?

Korea Standard Time (KST), UTC+9, year-round. South Korea abolished DST after 1988 and does not observe it. Clocks remain permanently at UTC+9 — the same offset as Japan Standard Time (JST). No time zone configuration is required in Remindavo; your calendar stores events in UTC and Remindavo automatically converts to KST.

Does Remindavo work for business teams using Kakao or Naver calendar?

Remindavo connects to Google Calendar and Microsoft Outlook. If your team uses Kakao Calendar or Naver Calendar, you can sync those calendars to Google Calendar (both Kakao and Naver offer Google Calendar sync or iCal export). Once synced, those events appear in your Google Calendar and Remindavo will call you before each one. Most Korean corporate users in large companies already use Google Workspace or Microsoft 365 for their primary business calendar.

Can Remindavo call legacy Korean mobile prefixes (011, 016, 017, 018, 019)?

Legacy prefixes from the pre-MNP era (011 for SKT, 016/018 for KT, 017 for Shinsegi, 019 for LG Telecom) are still in use by some existing subscribers who have retained their original numbers. Remindavo supports these numbers under the +82 country code in the same international format — drop the leading zero and prepend +82. However, most legacy-prefix subscribers have ported to 010 over the years, and no new numbers are issued on legacy prefixes.