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title: "session"
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# session
## Properties
### is_first_bar {#is_first_bar}
**Type:** series bool
Returns `true` if the current bar is the first bar of the day's session, `false` otherwise.
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### is_first_bar_regular {#is_first_bar_regular}
**Type:** series bool
Returns `true` on the first regular session bar of the day, `false` otherwise.
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### is_last_bar {#is_last_bar}
**Type:** series bool
Returns `true` if the current bar is the last bar of the day's session, `false` otherwise.
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### is_last_bar_regular {#is_last_bar_regular}
**Type:** series bool
Returns `true` on the last regular session bar of the day, `false` otherwise.
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### is_market {#is_market}
**Type:** series bool
Returns `true` if the current bar is a part of the regular trading hours (i.e. market hours), `false` otherwise.
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### is_postmarket {#is_postmarket}
**Type:** series bool
Returns `true` if the current bar is a part of the post-market, `false` otherwise.
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### is_premarket {#is_premarket}
**Type:** series bool
Returns `true` if the current bar is a part of the pre-market, `false` otherwise.