react-native-subtitles/utils/time-to-seconds.js

React Native Subtitles adds subtitles provides a simple API to add subtitles to your video

const timeToSeconds = (seconds) => {
    const time = seconds.split(':');
    return time[0] && time[1] && time[2]
        ? +time[0] * 60 * 60 + +time[1] * 60 + +time[2]
        : 0;
};
export default timeToSeconds;