希望将大小为(m,2)的numpy数组更改为hh:mm AM/PM形式的时间戳

import numpy as np
from datetime import datetime

def convert_to_timestamp(arr):
    timestamps = []
    for i in range(arr.shape[0]):
        timestamp = datetime.fromtimestamp(arr[i][0]).strftime('%I:%M %p')
        timestamps.append(timestamp)
    return timestamps

arr = np.array([[1627893600, 0], [1627897200, 1], [1627900800, 2]])
timestamps = convert_to_timestamp(arr)
print(timestamps)

['08:40 AM', '09:40 AM', '10:40 AM']