ISO 8583: where's the timezone for "Data and local time transaction"?

[robs....@gmail.com]

Hello.

So I am skimming throughout the 8583 standard and looking specifically at this field:

«6.4.6 Date and time local transaction (bit 12)

The Date and time local transaction is a constructed data element (see 5.4.3) of two parts totaling 14 positions:

a) Date local transaction, n 8 format CCYYMMDD;

b) Time local transaction, n 6 format hhmmss.

These parts provide the local year, month, day and time in which the transaction takes place at the card acceptor location in Authorization messages and Financial Presentment messages.

In all other message classes, it is the year, month, day and time set by the initiator of the first message in the transaction.

In all cases it shall remain unchanged throughout the lifetime of the transaction.»

But I can't find a field with the timestamp. How do I know in which local did this transaction happened?

I need this to be able to order all transactions.

Thanks (please quote some reliable source)

[Alejandro Revilla]

There's no timezone field that I'm aware of. Although not trivial, you may be able to derive that from field 43's city/country. Very tricky.

Field 7 (transmission timestamp) is in GMT on some major international networks, but I've saw it using local timestamp in some others.

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@apr

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[robs....@gmail.com]

The standard does state that field 7 should be UTC/GMT.
So, in the end, field 12 is not used...

On Thursday, August 16, 2018 at 4:51:08 PM UTC+1, Alejandro Revilla wrote:

There's no timezone field that I'm aware of. Although not trivial, you may be able to derive that from field 43's city/country. Very tricky.

Field 7 (transmission timestamp) is in GMT on some major international networks, but I've saw it using local timestamp in some others.

--

@apr

On Thu, Aug 16, 2018 at 6:22 AM, <robs....@gmail.com> wrote:

Hello.

So I am skimming throughout the 8583 standard and looking specifically at this field:

«6.4.6 Date and time local transaction (bit 12)

The Date and time local transaction is a constructed data element (see 5.4.3) of two parts totaling 14 positions:

a) Date local transaction, n 8 format CCYYMMDD;

b) Time local transaction, n 6 format hhmmss.

These parts provide the local year, month, day and time in which the transaction takes place at the card acceptor location in Authorization messages and Financial Presentment messages.

In all other message classes, it is the year, month, day and time set by the initiator of the first message in the transaction.

In all cases it shall remain unchanged throughout the lifetime of the transaction.»

But I can't find a field with the timestamp. How do I know in which local did this transaction happened?

I need this to be able to order all transactions.

Thanks (please quote some reliable source)

--
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jPOS is licensed under AGPL - free for community usage for your open-source project. Licenses are also available for commercial usage. Please support jPOS, contact: sa...@jpos.org
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To unsubscribe from this group and stop receiving emails from it, send an email to jpos-users+...@googlegroups.com.

[robs....@gmail.com]

I mean it is not used in the sense it is meaningless. The time present there may be any hour in the 24 of the day.