Windows 10: Active hours not showing AM or PM, just blank and a dot.

Here is the picture:


I don't know what happened, I wanted to configure my active hours but I can't tell when is PM and when is AM, it just shows a blank and a dot, and I've seen other screens when it actually shows AM and PM.

Just updated to 1803, and this is one bug I've found. My time settings are for 12 hours:


System specs: Dell Inspiron 5570
CPU: Intel(R) Core(TM) i7-8550U
RAM: 8GB DDR4
GPU: Intel UHD 620
Dedicated GPU: AMD Radeon 530
HDD: 2 TB HDD (not SSD)
System: Windows 10 Home Single Language update 1803

I really don't know what is happening, I can't set the active hours because I don't know if the dot means AM or PM.

I have exactly that version: 17134.112

The laptop restarted last night (while suspended...) and installed all these updates:

dalchina said:

Hi, can you give the exact build number and confirm you have received the last update? (Windows key + R, winver, Update History).

See the News forum for the latest update.
Cumulative Update KB4284835 Windows 10 v1803 Build 17134.112 - June 12 - Windows 10 Forums

Have you tried setting your system clock to 24 hours (check your Active Hours display format = 2 fields each) then back to 12 and check again?

I've tried every single combination, I even find the AM/PM symbol configuration, changed it but didn't have any effect on Active Hours config. I have another laptop (I thought it could be some spanish language related) but it doesn't have this issue, it shows a.m. or p.m. on active hours, and they both have same language and hour configuration.

I found out that when I choose the 24 hour settings, the dot and the blank are gone, and now at least I can set the hours in 24 hour config. But when I revert it back to 12 hour, the dot and blank appears again.