<div dir="ltr"><div><div>Thanks, Alan and Ruben.</div><div><br></div><div>Looking at all other datetime fields, the 
values are all stored as yyyy-mm-dd hh:mm:ss and there's no timezone 
information. The times match the timezone of our server (I set the 
timezone in config.inc.php). All of our current users are in the same time zone.</div><div><br></div><div>What I'm beginning to think is whatever converts date format for the user is being treated as a change in the value of the field so that when they save the record, vTiger is processing it without converting it to a valid date and saves it as a zero. I've had other instances of fields being changed for similar reasons. For example, editing a ticket that was assigned to a user that has since been marked inactive would reassign the ticket to the first active user in the list. <br></div></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><br></div><table cellpadding="0" cellspacing="0" style="font-family:Arial,sans-serif;font-size:14px;color:rgb(51,51,51)"><tbody><tr><td style="display:flex"><b><img src="https://media.glassdoor.com/sql/640156/retail-data-systems-squarelogo-1412104178471.png" alt="RDS Logo" style="width:60px;height:60px;margin-right:10px"></b><div><b>Steve Kenow</b><br><span style="font-style:italic;font-size:12px">Manager, End-User Services and Support - <a href="https://www.rdspos.com/Minneapolis-Minnesota-Grocery-Point-of-Sale-System" target="_blank">RDS MN</a></span><br><span style="font-size:12px;display:inline-block">Direct: (952) 392-2686<br>Office: (952) 934-4001<br>Email: <a href="mailto:skenow@rdspos.com" style="color:rgb(17,85,204)" target="_blank">skenow@rdspos.com</a></span></div></td></tr><tr><td><table cellpadding="0" cellspacing="0"><tbody><tr><td><br><table cellpadding="0" cellspacing="0"><tbody><tr><td><table cellpadding="0" cellspacing="0" style="margin-top:10px"><tbody><tr><td><a href="https://mailtrack.io/trace/link/d5e46ac8cfdec7b8ebdc539696dd45306644b800?w=anNrb2xha0ByZHNwb3MuY29t&url=https%3A%2F%2Fwww.rdspos.com%2FProducts-Solutions%2FGrocery&userId=3091118&signature=18b062316c510b1b" style="color:rgb(17,85,204)" target="_blank"><img src="https://www.rdspos.com/portals/0/Icon-Shopping-Cart2.jpg" alt="Icon 1" style="width:30px;height:30px;margin-right:10px"></a></td><td><a href="https://mailtrack.io/trace/link/b0fdfdd837e0d187e174cae0c9479c9b847c4e36?w=anNrb2xha0ByZHNwb3MuY29t&url=https%3A%2F%2Fwww.rdspos.com%2FProducts-Solutions%2FQuick-Service%2FPoint-of-Sale-Solutions&userId=3091118&signature=b26cf2b23255a2a2" style="color:rgb(17,85,204)" target="_blank"><img src="https://www.rdspos.com/portals/0/Icon-Burger2.jpg" alt="Icon 2" style="width:30px;height:30px;margin-right:10px"></a></td><td><a href="https://mailtrack.io/trace/link/9c1116af49d5de3a851b38185dbd7ba07d27def2?w=anNrb2xha0ByZHNwb3MuY29t&url=https%3A%2F%2Fwww.rdspos.com%2FProducts-Solutions%2FRestaurant%2FPoint-of-Sale-Solutions&userId=3091118&signature=78db9a7d4392c7ed" style="color:rgb(17,85,204)" target="_blank"><img src="https://www.rdspos.com/portals/0/Icons-TableService2.jpg" alt="Icon 3" style="width:30px;height:30px;margin-right:10px"></a></td><td><a href="https://mailtrack.io/trace/link/c5c6a63b04b163898650fb7e2fdd7312ca923cdf?w=anNrb2xha0ByZHNwb3MuY29t&url=https%3A%2F%2Fwww.rdspos.com%2FProducts-Solutions%2FGeneral-Retail&userId=3091118&signature=1ec7a1d9db94a0f1" style="color:rgb(17,85,204)" target="_blank"><img src="https://www.rdspos.com/portals/0/Icons-Retail2.png" alt="Icon 4" style="width:30px;height:30px;margin-right:10px"></a></td><td><a href="https://mailtrack.io/trace/link/9d0a121b09b0d5e1ba1c5be04c5c2b8d969b7d2c?w=anNrb2xha0ByZHNwb3MuY29t&url=https%3A%2F%2Fwww.rdspos.com%2FProducts-Solutions%2FConvenience-Store%2FNCR-Radiant-Convenience-Store-POS-System&userId=3091118&signature=112f29b42fe5a787" style="color:rgb(17,85,204)" target="_blank"><img src="https://www.rdspos.com/portals/0/Icon-Fuel2.jpg" alt="Icon 5" style="width:30px;height:30px;margin-right:10px"></a></td><td><a href="https://mailtrack.io/trace/link/16b4ffb1c4363203009e09666cb41ce82f3a39c1?w=anNrb2xha0ByZHNwb3MuY29t&url=https%3A%2F%2Fwww.rdspos.com%2FProducts-Solutions%2FRDS-Payment-Services&userId=3091118&signature=84ffb1248e80fb55" style="color:rgb(17,85,204)" target="_blank"><img src="https://www.rdspos.com/portals/0/Icon%20-%20Credit%20Card%20processing.png" alt="Icon 6" style="width:30px;height:30px;margin-right:10px"></a></td></tr></tbody></table><hr style="width:240px;height:1px;margin-top:10px;margin-bottom:6px;background-color:rgb(170,170,170)"><div><br></div></td></tr></tbody></table><font size="2">Support Questions/Issues? Email <a href="mailto:rdshelp@rdspos.com" target="_blank">rdshelp@rdspos.com</a> (non-emergencies) or call (952) 934-4002 24/7</font></td></tr></tbody></table></td></tr></tbody></table></div></div></div><br></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Tue, Dec 17, 2024 at 7:16 PM Rubén A. Estrada Orozco <<a href="mailto:rulotec1@gmail.com">rulotec1@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">If all users are located in the same time zone, I would recommend not using UTC for the database but the timezone of the users. It's more convenient (what you see in the db is the same thing you see in the UI)</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Dec 17, 2024 at 11:48 AM Alan Lord <<a href="mailto:alanslists@gmail.com" target="_blank">alanslists@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">One other thing. Datetime columns in the database should ALWAYS be <br>
stored in UTC. They are converted as the user views them based on not <br>
only the format, but also their timezone.<br>
<br>
Al<br>
<br>
On 17/12/2024 17:40, Alan Lord wrote:<br>
> I think I'd probably use a custom Event Handler rather than a workflow <br>
> and make the field read-only and update it directly using a query when <br>
> the triggering event occurs. You could add a simple test to say if the <br>
> field is not null or not empty, then don't update it - ever.<br>
><br>
> HTH<br>
><br>
> Al<br>
><br>
<br>
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