Time stamps are stored in the DeltaV Continuous Historian and Event
Chronicle databases using Greenwich Mean Time (GMT). DeltaV Reporter supports
viewing time stamp data in three ways:
-
GMT – Dates and times are presented as they were
recorded by the DeltaV Continuous Historian.
- Local
Time – Dates and times are presented in the user's local time as it
applied at the time of the recording. For example, if the event occurred during
daylight saving time, it will be presented showing the daylight saving local
time even when viewed outside daylight saving time.
- GMT
Offset – Dates and times are presented with a fixed,
user-configurable, offset (±hh:mm) from GMT. This offset will be constant, and
will disregard daylight saving time. This mode would be useful where data is
viewed in a different locale from where it was recorded. It will allow the data
to be viewed in an approximation of the local time of the plant.