Remove community call time column (#5424)

remove community call time column

README.md

@@ -24,17 +24,17 @@ This repo provides an implementation of an Ingress Controller for NGINX and NGIN
 
 We value community input and would love to see you at our next community call. At these calls, we discuss PRs by community members as well as issues, discussions and feature requests.
 
-**When**: Every other Monday at 4 PM Irish Time. 
 **Zoom Link**: [KIC - GitHub Issues Triage](https://f5networks.zoom.us/j/91421953779?pwd=197738) 
 **Password**: `197738` 
 **Slack**: Join our channel `#nginx-ingress-controller` on the [NGINX Community Slack](https://nginxcommunity.slack.com/channels/nginx-ingress-controller) for updates and discussions. 
-
-| **Date** | **Irish Time** | **GMT** |
-| -------------- | -------------- | -------- |
-| **2024-05-06** | **4 PM** | **3 PM** |
-| **2024-05-20** | **4 PM** | **3 PM** |
-| **2024-06-03** | **4 PM** | **3 PM** |
-| **2024-06-17** | **4 PM** | **3 PM** |
+**When**: 15:00 GMT / [Convert to your timezone](https://dateful.com/convert/gmt?t=15), every other Monday.
+
+| **Community Call Dates**|
+| -------------- |
+| **2024-05-06** |
+| **2024-05-20** |
+| **2024-06-03** |
+| **2024-06-17** |
 
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