workRequestBuilder.addTag("mywork");

WorkManager workManager = WorkManager.getInstance();
ListenableFuture<List<WorkInfo>> workInfos = workManager.getWorkInfosByTag("mywork");

try {
    List<WorkInfo> workInfoList = workInfos.get();
    for (WorkInfo workInfo : workInfoList) {
        WorkInfo.State state = workInfo.getState();
        if (state == WorkInfo.State.ENQUEUED) {
            UUID workerId = workInfo.getId();
            Log.d(TAG, "found enqueued work with id " + workerId);
            // BUT HOW DO I TELL WHAT TIME THIS WORK IS SCHEDULED TO RUN?
        }
    }
} catch (ExecutionException e) {
    e.printStackTrace();
} catch (InterruptedException e) {
    e.printStackTrace();
}