flutter pub add ntp基于插件公开信息、社区数据与项目使用情况整理的选型参考。
ntp 包提供了一种从网络时间协议（NTP）服务器获取准确系统时间的简单方法。它使应用程序能够获得与全球时间标准同步的精确 DateTime 值，这在日志记录、调度或跨设备同步等对时间敏感的操作中尤其有用。该包支持 Android、iOS、macOS、Windows 和 Linux 等多个平台，确保在不同环境中的行为一致。它使用标准 NTP 协议，并提供易于使用的 API 来获取当前时间，而无需依赖本地设备时钟。
以下为关联源码仓库的 README 原文快照，最新内容请访问源码仓库。
Plugin that allows you to get precise time from Network Time Protocol (NTP). It implements whole NTP protocol in dart.
This is useful for time-based events since DateTime.now() returns the time of the device. Users sometimes change their internal clock and using DateTime.now() can give wrong result. You can just get clock offset [NTP.getNtpTime] and apply it manually to DateTime.now() object when needed (just add offset as milliseconds duration), or you can get already formatted [DateTime] object from [NTP.now].
By default lookup address for NTP is: time.google.com
For example on how to use look in github library repository example/ folder.
Using int offset from getNtpTime()
DateTime startDate = new DateTime.now().toLocal();
int offset = await NTP.getNtpOffset(localTime: startDate);
print('NTP DateTime offset align: ${startDate.add(new Duration(milliseconds: offset))}');
Using DateTime from now
DateTime startDate = await NTP.now();
print('NTP DateTime: ${startDate}');
Future<int> getNtpOffset({
String lookUpAddress: 'time.google.com',
int port: 123,
DateTime localTime,
Duration timeout,
});
Future<DateTime> now();