---
title: connectStartDate
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/urlsessiontasktransactionmetrics/connectstartdate
---

# connectStartDate

The time immediately before the task started establishing a TCP connection to the server.

## Declaration

```swift
var connectStartDate: Date? { get }
```

## Discussion

Discussion This value will be nil if a persistent connection is used, or if the resource is retrieved from local resources.

## See Also

### Accessing temporal metrics

- [fetchStartDate](foundation/urlsessiontasktransactionmetrics/fetchstartdate.md)
- [domainLookupStartDate](foundation/urlsessiontasktransactionmetrics/domainlookupstartdate.md)
- [domainLookupEndDate](foundation/urlsessiontasktransactionmetrics/domainlookupenddate.md)
- [secureConnectionStartDate](foundation/urlsessiontasktransactionmetrics/secureconnectionstartdate.md)
- [secureConnectionEndDate](foundation/urlsessiontasktransactionmetrics/secureconnectionenddate.md)
- [connectEndDate](foundation/urlsessiontasktransactionmetrics/connectenddate.md)
- [requestStartDate](foundation/urlsessiontasktransactionmetrics/requeststartdate.md)
- [requestEndDate](foundation/urlsessiontasktransactionmetrics/requestenddate.md)
- [responseStartDate](foundation/urlsessiontasktransactionmetrics/responsestartdate.md)
- [responseEndDate](foundation/urlsessiontasktransactionmetrics/responseenddate.md)