ezTime — pronounced "Easy Time" — is a very easy to use Arduino time and date library that provides NTP network time lookups, extensive timezone support, formatted time and date strings, user events, millisecond precision and more.

High accuracy NTP library for ESP32 and ESP8266

High precision and accuracy, open source, online, extensible and low cost homebrew automation on top of ESP8266 microchip.

GPS fueled ESP8266 based NTP Server

NTP library for Arduino framework

Nick is a series of different Nixie clocks based on ESP8266.

NTP Client (Windows DLL/LIB + Console App + CVI GUI App) - small and accurate NTP client, easily integrable into any app

TCP/UDP Applicaton for Arduino using ESP8266's AT firmware.

NTP client in C++ (compatible with chrony)

An experimental C++17 implementation of a new Client/Server-based approach to IEEE1588 (Precision Time Protocol, PTP)

Library to read time from Network Time Protocol (NTP) servers.

This library enables you to use RTC from RP2040-based boards such as Nano_RP2040_Connect, RASPBERRY_PI_PICO. This RP2040-based RTC, using Interrupt, has no battery backup. Time will be lost when powered down. To need NTP-client to update RTC every start-up.

A clock that tells time in plain text

ESP8266 based dot matrix clock with weather

Network WiFi access, OTA, NTP time and MQTT (via PubSubClient) for ESP8266 and ESP32

A plugin that synchronizes a Wii U's clock to the Internet.

Wordclock 2.0 with ESP8266 and NTP time

Simple NTP server with GPS satellites synchronization.

Fully Asynchronous UDP Library for WT32_ETH01 (ESP32 + LAN8720). The library is easy to use and includes support for Unicast, Broadcast and Multicast environments.

Uses an ESP8266 module and an Arduino sketch to display the local time on a inexpensive analog quartz clock.