Python 时间模块格式的日期时间代码问题

Question

我使用了 %-I 格式的时间，但它抛出了一个错误，提示“Traceback（最近一次调用最后一次）：文件“c:\Users\Lenovo\Desktop\VA Project\EDITH.py”，第 31 行，在 timeEve = now.strftime("%-I %M") ValueError: Invalid format string"

import pyttsx3
import tkinter
import speech_recognition as sr
import datetime
import time
from datetime import date
today = date.today()
now =  datetime.datetime.now()

# Textual month, day and year   
d8 = today.strftime("%A %B %d, %Y")
time = now.strftime("%H%M")
timeDay = now.strftime("%M")
timeEve = now.strftime("%-I %M") #THIS IS WHERE THE PROBLEM IS WITH THE "%-I"

def askTime():
    engine = pyttsx3.init()
    engine.setProperty('rate', 170) # Decrease the Speed Rate x2
    if int(time)<1200:
        engine.say("Good morning!")
        engine.say("Today is "+d8)
        engine.say("and the time is "+timeDay)
        engine.runAndWait()
    if int(time)>1200 and int(time)<1600:
        engine.say("Good afternoon!")
        engine.say("Today is "+d8)
        engine.say("and the time is "+timeEve)
        engine.runAndWait()
    if int(time)>1600:
        engine.say("Good evening!")
        engine.say("Today is "+d8)
        engine.say("and the time is "+timeEve)
        engine.runAndWait()