Local time in NOVOSIBIRSK - RUSSIA
Novosibirsk - Russia Actual Time and Date
Synchronized clock on atomic clock in real time
Current time & Weather at Novosibirsk
Current Local time
Current weather
Novosibirsk timezone information
Geographical and astronomical datas : Russia
Current time information for Novosibirsk / / Asia
TIMESTAMP WITH TIME ZONE at Novosibirsk
TIMESTAMP WITHOUT TIME ZONE
However, the standard has a somewhat naive understanding of time zones
It generally assumes a time zone can be specified by a simple offset from GMT
This causes problems when trying to do arithmetic on dates which span daylight saving time transitions or which span political changes in time zone rules.
Oracle Database is configured with a database time zone, and connecting clients are configured with session time zones
Oracle Database uses two data types to store time zone information:
Stores date and time information with the offset from UTC
Stores date and time information with respect to the dbtimezone (which cannot be changed so long as there is a column in the db of this type), automatically adjusting the date and time from the stored time zone to the client's session time zone.
PostgreSQL uses the standard SQL data types but tries to impose an interpretation which avoids the problems described above.
TIMESTAMP WITH TIME ZONE
Stores date and time in UTC and converts to the client's local time zone (which could be different for each client) for display purposes.
TIMESTAMP WITHOUT TIME ZONE - Russia
Stores date and time without any conversion on input or output
ISO 8601 Data elements and interchange formats — Information interchange — Representation of dates and times is an international standard covering the exchange of date and time-related data
It was issued by the International Organization for Standardization (ISO) and was first published in 1988
The purpose of this standard is to provide an unambiguous and well-defined method of representing dates and times, so as to avoid misinterpretation of numeric representations of dates and times, particularly when data is transferred between countries with different conventions for writing numeric dates and times.
The standard organizes the data so the largest temporal term (the year) appears first in the data string and progresses to the smallest term (the second)
It also provides for a standardized method of communicating time-based information across time zones by attaching an offset to Coordinated Universal Time (UTC).
The first edition of the ISO 8601 standard was published in 1988