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HMI - PLC Time is out of sync

Created by: AutoGen_443184 at: 5/22/2025 8:46 AM (1 Replies)

5/22/2025 8:46 AM	Rate (0)
AutoGen_443184 Joined: 5/6/2025 Last visit: 7/7/2025 Posts: 17 Rating: (0)	Hello. I am using a MTP400 Unified Basic panel at work along with a 1211C PLC and the time is apparently out of sync. I have an IO field that shows the time on my HMI but it is 2 hours behind. I checked the time zones on my PLC and my HMI and they're both set to UTC+1 so I don't know what's causing the issue Edit: Looking at the control panel of my HMI, in Date and Time it shows the correct date, time and time zone but when I start runtime the IO field shows the time as 2 hours behind. I set the output format to {T,@HH:mm} and a script for the process value which is: return (Date.now()); Could there be something wrong with either the output format or the script?
	Last edited by: AutoGen_443184 at: 05/22/2025 08:51:17
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5/22/2025 10:01 AM	Rate (1)
Stefan Arcularius Platinum Expert Joined: 1/21/2013 Last visit: 9/15/2025 Posts: 4110 Rating: (635)	Hi, The problem is that the date is always based on UTC, but the IO field does not account for time zones. This is beneficial because if you're obtaining a time value from the process, you likely want the raw value. For your particular issue, however, there are different approaches you can take. IO field with date/time output format: You need to get a value that takes the timezone into account. let now = new Date(); return now.setTime(now.getTime() - now.getTimezoneOffset()601000); You should also note that changing the time zone in Control Panel will not affect runtime until yo IO field with string output format: You can use pure JavaScript to provide the value string as needed. In the simplest way, you can use: let myDate = new Date(); return myDate.toLocaleString(); Clock object: If your device version already supports it, you can use the Clock object. Kind regards Stefan

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